Maki the CX5

Started with a full 58L tank, takes 91 RON or higher. We'll probably keep using 95 for now, will see how mileage goes and costs go.

Date	Quantity (L)	Unit cost ($/L)	Total	Odometer reading	Comment
2022-11-13	0.00	n/a	n/a	22	Received with full tank, guessing the initial non-zero odometer reading
2022-11-22	35.26	2.079	73.31	337	Filled up 95RON in Kellyville Ridge (23.27c/km) (11.19L/100km)
2022-12-04	47.85	1.919	91.82	831	Filled up 95RON in Glenwood (18.59c/km) (9.69L/100km)
2022-12-11	32.29	1.839	59.38	1173	Filled up 95RON in Randwick (17.36c/km) (9.44L/100km)
2022-12-21	46.00	1.919	88.27	1685	Filled up 95RON in Kellyville (17.24c/km) (8.98L/100km)
2023-01-03	43.03	2.179	93.76	2141	Filled up 95RON in Kellyville (20.56c/km) (9.44L/100km)
2023-01-20	47.37	1.879	89.01	2627	Filled up 95RON in Parklea (18.31c/km) (9.75L/100km)
2023-02-05	45.55	1.869	85.13	3119	Filled up 95RON in Kellyville (17.30c/km) (9.26L/100km)
2023-02-10	37.78	2.099	79.30	3561	Filled up 98RON in Canberra (17.94c/km) (8.55L/100km)
2023-02-12	15.26	2.119	32.34	3751	Filled up 95RON in Jindabyne (17.02c/km) (8.03L/100km)
2023-02-16	45.33	2.269	102.85	4390	Filled up 95RON in Kellyville (16.10c/km) (7.09L/100km)
2023-02-27	46.00	2.129	97.93	4878	Filled up 95RON in Kellyville (20.07c/km) (9.43L/100km)
2023-03-19	48.63	1.889	91.86	5366	Filled up 95RON in Kellyville Ridge (18.82c/km) (9.97L/100km)
2023-03-29	43.35	2.249	97.49	5803	Filled up 95RON in Kellyville Ridge (22.31c/km) (9.92L/100km)
2023-04-05	47.81	2.049	97.96	6344	Filled up 95RON in Kings Park (18.11c/km) (8.84K/100km)
2023-04-13	40.35	2.139	86.31	6822	Filled up 95RON in Kellyville Ridge (18.06c/km) (8.44L/100km)
2023-04-23	38.86	2.139	83.12	7233	Filled up 95RON in Kellyville Ridge (20.22c/km) (9.45L/100km)
2023-05-16	46.33	1.879	90.05	7725	Filled up 98RON in Kellyville Ridge (18.30c/km) (9.42L/100km)
2023-05-21	26.30	1.799	47.31	7983	Filled up 95RON in Randwick (18.34c/km) (10.19L/100km)
2023-06-04	45.30	2.209	100.07	8453	Filled up 98RON in Kellyville Ridge (21.29c/km) (9.64L/100km)
2023-06-16	43.96	2.059	90.51	8892	Filled up 95RON in Kellyville Ridge (20.62c/km) (10.01L/100km)
2023-06-28	44.71	1.899	84.90	9359	Filled up 95RON in Rouse Hill (18.18c/km) (9.57L/100km)
2023-07-06	44.82	1.785	80.00	9857	Filled up 98RON in Kellyville Ridge (16.06c/km) (9.00L/100km)
2023-07-15	47.68	2.139	101.99	10380	Filled up 95RON in Randwick (19.50c/km) (9.12L/100km)
2023-07-27	44.03	2.019	83.90	10864	Filled up 98RON in North Rocks (17.33c/km) (9.10L/100km)
2023-08-08	48.44	2.479	120.09	11401	Filled up 98RON in Kellyville Ridge (22.36c/km) (9.02L/100km)
2023-08-20	49.24	2.319	114.19	11890	Filled up 95RON in Rouse Hill (23.35c/km) (10.07L/100km)
2023-08-29	45.96	2.089	96.01	12399	Filled up 98RON in Kellyville Ridge (18.86c/km) (9.03L/100km)
2023-09-10	42.82	2.279	97.59	12817	Filled up 95RON in Randwick (23.35c/km) (10.24L/100km)
2023-09-20	47.88	2.409	115.34	13373	Filled up 95RON in Kellyville Ridge (20.74c/km) (8.61L/100km)
2023-10-01	50.02	2.269	113.50	13909	Filled up 95RON in Parklea (21.18c/km) (9.33L/100km)
2023-10-11	39.79	2.139	85.11	14307	Filled up 95RON in Kellyville Ridge (21.38c/km) (10.00L/100km)
2023-10-21	44.13	2.039	89.98	14776	Filled up 98RON in Randwick (19.19c/km) (9.41L/100km)
2023-11-02	44.09	2.459	108.42	15249	Filled up 95RON in Kellyville (22.92c/km) (9.32L/100km)
2023-11-12	41.22	2.319	95.59	15671	Filled up 98RON in Randwick (22.65c/km) (9.77L/100km)
2023-11-25	43.04	2.029	87.33	16147	Filled up 95RON in Blacktown (18.35c/km) (9.04L/100km)
2023-12-09	45.00	1.909	85.91	16603	Filled up 95RON in Kellyville Ridge (18.84c/km) (9.87L/100km)
2023-12-17	45.02	1.899	85.49	17077	Filled up 95RON in Kellyville Ridge (18.04c/km) (9.50L/100km)
2024-01-04	46.94	2.049	96.18	17560	Filled up 95RON in Kellyville Ridge (19.91c/km) (9.72L/100km)
2024-01-20	49.28	2.009	99.00	18104	Filled up 95RON in Randwick (18.20c/km) (9.06L/100km)
2024-01-28	44.70	1.969	88.01	18629	Filled up 95RON in Kellyville Ridge (16.76c/km) (8.51L/100km)
2024-02-08	44.89	2.059	92.43	19100	Filled up 95RON in North Rocks (19.62c/km) (9.53L/100km)
2024-02-29	42.29	2.449	103.57	19574	Filled up 95RON in Kellyville (21.85c/km) (8.92L/100km)
2024-03-19	49.00	1.879	92.07	20061	Filled up E10 in Baulkham Hills (18.91c/km) (10.06L/100km) tank was empty so we're experimenting with E10
2024-03-30	46.43	1.879	87.24	20530	Filled up E10 in Kellyville Ridge (18.60c/km) (9.90L/100km)
2024-04-12	47.78	2.339	111.76	21020	Filled up E10 in Kellyville Ridge (22.81c/km) (9.75L/100km)
2024-04-21	35.64	2.139	76.23	21384	Filled up 91RON in Randwick (20.94c/km) (9.79L/100km)
2024-05-02	47.83	1.959	93.70	21914	Filled up ??? in North Rocks (530km, 17.68c/km, 9.02L/100km)
2024-05-15	40.55	1.899	77.00	22282	Filled up E10 in Parklea (20.87c/km, 11.02L/100km)
2024-05-24	41.46	1.799	74.59	22717	Filled up ??? in North Rocks (435km, 17.15c/km, 9.53L/100km)
2024-06-07	46.91	1.869	87.67	23144	Filled up 95RON in Kellyville Ridge (427km, 20.53c/km, 10.99L/100km)
2024-06-20	41.41	1.799	74.50	23542	Filled up E10 in North Rocks (398km, 18.72c/km, 10.40L/100km)
2024-07-03	44.13	1.949	86.01	23974	Filled up 95RON in Kellyville Ridge (432km, 19.91c/km, 10.22L/100km)
2024-07-16	47.46	1.939	92.02	24478	Filled up 95RON in Kellyville Ridge (504km, 18.26c/km, 9.42L/100km)
2024-07-27	45.00	2.039	91.76	24959	Filled up 95/98RON in North Rocks (481km, 19.08c/km, 9.36L/100km)
2024-08-10	46.36	1.929	89.43	25409	Filled up 95RON in Kellyville Ridge (450km, 19.87c/km, 10.30L/100km)
2024-08-26	48.00	1.749	83.95	25921	Filled up 95RON in Kellyville Ridge (512km, 16.40c/km, 9.38L/100km)
2024-10-01	26.22	1.799	47.17	26150	Filled up 91RON in Kellyville Ridge (229km, 20.60c/km, 11.45L/100km)
2024-10-12	39.00	1.949	76.01	26568	Filled up 95RON in Kellyville Ridge (418km, 18.18c/km, 9.33L/100km)
2024-10-20	43.65	1.845	80.53	27007	Filled up 95RON in Moss Vale (439km, 18.34c/km, 9.94L/100km)
2024-10-26	40.27	1.769	71.24	27509	Filled up 95RON in Kellyville Ridge (502km, 14.19c/km, 8.02L/100km)
2024-11-10	47.52	1.949	92.62	28014	Filled up 95RON in Kellyville Ridge (505km, 18.34c/km, 9.41L/100km)
2024-11-27	45.83	1.789	82.00	28455	Filled up 95RON at Carlingford Court (441km, 18.59c/km, 10.39L/100km)
2024-12-08	45.77	2.189	100.19	28899	Filled up 95RON in Kellyville Ridge (444km, 22.57c/km, 10.31L/100km)
2024-12-20	43.63	1.949	85.03	29345	Filled up 95RON in Kellyville Ridge (446km, 19.07c/km, 9.78L/100km)
2024-12-27	42.10	2.059	86.68	29820	Filled up 95RON in Pheasants Nest (475km, 18.25c/km, 8.86L/100km)
2024-12-29	34.37	2.179	74.89	30262	Filled up 98RON in Sutton Forest (442km, 16.94c/km, 7.78L/100km)
2025-01-14	44.03	1.829	80.53	30797	Filled up 95RON in Kellyville Ridge (535km, 15.05c/km, 8.23L/100km)
2025-01-26	48.13	2.259	108.73	31303	Filled up 98RON in Randwick (506km, 21.49c/km, 9.51L/100km)
2025-02-09	41.16	2.059	84.75	31735	Filled up 95RON in Kellyville Ridge (432km, 19.62c/km, 9.53L/100km)
2025-02-22	39.85	1.889	75.28	32162	Filled up 98RON in Randwick (427km, 17.63c/km, 9.33L/100km)
2025-03-15	42.67	2.289	97.67	32636	Filled up 95RON in Kellyville (474km, 20.61c/km, 9.00L/100km)
2025-03-25	44.20	2.049	90.57	33221	Filled up 95RON in Kellyville (585km, 15.48c/km, 7.56L/100km)
2025-04-16	42.21	1.759	74.25	33605	Filled up 95RON in Kellyville Ridge (384km, 19.34c/km, 10.99L/100km)
2025-04-19	36.06	1.859	67.04	34069	Filled up 95RON in Cooma (464km, 14.45c/km, 7.77L/100km)
2025-04-25	28.90	1.999	57.77	34413	Filled up 98RON in Merimbula (344km, 16.79c/km, 8.40L/100km
2025-04-25	33.33	1.969	65.63	34872	Filled up 95RON in Pheasants Nest (459km, 14.30c/km, 7.26L/100km
2025-05-10	38.15	1.849	70.55	35258	Filled up 95RON in Blacktown (386km, 18.28c/km, 9.88L/100km
2025-05-27	46.76	1.749	81.78	35773	Filled up 95RON in Kellyville (515km, 15.88c/km, 9.08L/100km
2025-06-16	44.06	1.949	85.87	36204	Filled up 95RON in Kellyville Ridge (431km, 19.92c/km, 10.22L/100km)
2025-07-01	46.88	1.889	88.56	36717	Filled up 95RON in Kellyville Ridge (513km, 17.26c/km, 9.14L/100km)
2025-07-21	46.06	1.739	80.10	37227	Filled up 95RON in Kellyville Ridge (510km, 15.71c/km, 9.03L/100km)
2025-08-15	45.87	1.819	83.44	37700	Filled up 95RON in Kellyville Ridge (473km, 17.64c/km, 9.70L/100km)
2025-08-31	50.28	1.765	88.74	38261	Filled up 98RON in Randwick (561km, 15.82c/km, 8.96L/100km)
2025-09-27	45.13	1.859	83.90	38781	Filled up 95RON in Kellyville Ridge (520km, 16.13c/km, 8.68L/100km)
2025-10-18	50.00	1.979	98.95	39307	Filled up 95RON in Bella Vista (526km, 18.81c/km, 9.51L/100km)
2025-11-01	43.60	1.829	79.74	39758	Filled up 95RON in Kellyville Ridge (451km, 17.68c/km, 9.67L/100km)
2025-11-21	45.21	2.159	97.61	40221	Filled up 95RON in Kellyville Ridge (463km, 21.08c/km, 9.76L/100km)
2025-12-25	29.52	1.797	53.05	40534	Filled up 98RON in Riverstone (313km, 16.95c/km, 9.43L/100km)
2026-01-11	29.39	1.769	51.99	40817	Filled up 95RON in Kellyville Ridge (283km, 18.37c/km, 10.39L/100km)
2026-01-25	43.94	1.717	75.44	41314	Filled up 98RON in Riverstone (497km, 15.18c/km, 8.84L/100km)
2026-02-09	44.77	1.737	77.77	41812	Filled up 98RON in Riverstone (498km, 15.62c/km, 8.99L/100km)
2026-02-22	33.52	1.809	60.64	42159	Filled up 95RON in Kellyville Ridge (347km, 17.48c/km, 9.66L/100km)
2026-03-15	48.32	2.469	119.30	42697	Filled up 95RON in Kellyville Ridge (538km, 22.17c/km, 8.98L/100km)
2026-04-03	33.26	2.485	82.65	43055	Filled up 95RON in Kellyville Ridge (358km, 23.09c/km, 9.29L/100km)
2026-04-17	35.99	2.209	79.50	43444	Filled up 95RON in Kellyville Ridge (389km, 20.44c/km, 9.25L/100km)
2026-04-28	36.70	1.959	71.90	43863	Filled up 95RON in Kellyville Ridge (419km, 17.16c/km, 8.76L/100km)
2026-05-15	44.21	1.889	83.51	44336	Filled up 95RON in Kellyville Ridge (473km, 17.66c/km, 9.35L/100km)
2026-06-02	44.53	1.909	85.01	44808	Filled up 95RON in Kellyville Ridge (472km, 18.01c/km, 9.43L/100km)

Bismarck the Giulietta

Started with a full 60L tank, she takes 95 RON or higher.

We generally see 8.5 ~ 9.0 L/100km I think.

Took ownership on 2016-02-26 with 43,237 km on odometer.

Date	Quantity (L)	Unit cost ($/L)	Total	Odometer reading	Comment
2016-02-27	19.39	1.379	26.74	-	Filled ULP 95
2016-03-05	36.82	1.229	45.25	-	Filled ULP 95, early morning driving to Mt Colah
2016-03-09	29.74	1.199	35.66	44010	Filled ULP 98 because they only had 94, nice price drop
2016-03-13	15.27	1.109	16.94	-	Filled ULP 98 because dunno
2016-03-23	21.88	1.359	29.73	-	Filled ULP 98 because they didn't have 95, ouch expensive
2016-03-25	15.84	1.263	20.00	-	Filled ULP 98 because they don't have 95
2016-03-29	45.53	1.179	53.68	-	Bless you Caltex for having 95RON
2016-04-06	21.57	1.154	24.89	-	Bloody 7-11 with their 98RON only, at least it was cheap
2016-04-16	29.59	1.299	38.44	-	Filled with 95RON at Caltex Woolworths Richmond
2016-04-19	15.40	1.299	20.00	-	Caltex's 95RON was out of order
2016-04-25	24.14	1.107	26.72	-	Filled with 95RON, 4c/L discount from Woolworths
2016-04-23	23.65	1.269	30.01	-	Topped up with 95RON while buying stuff for church camp
2016-04-27	23.39	1.122	26.24	46436	Filled at BP West Ryde
2016-05-08	43.50	1.219	53.03	46890	Filled at Carlingford Car Care
2016-05-15	43.32	1.319	57.14	47350	Filled at Baulkham Hills, chose 98RON because cheap enough
2016-05-23	14.20	1.409	20.01	47680	BP Lane Cove
2016-06-06	43.37	1.249	54.17	47931	Filled up 98RON at Caltex-Woolies on Balaclava Rd, 4c/L discount from docket
2016-06-18	47.47	1.395	66.21	48429	Filled up 95RON at Caltex-Woolies in Concord
2016-06-23	23.60	1.369	32.31	48652	Filled up 95RON at Caltex-Woolies on Balaclava Rd
2016-07-03	33.65	1.219	41.02	49013	Filled up 95RON at Caltex in Carlingford, no docket discount
2016-07-10	24.18	1.129	27.30	49251	Filled up 95RON at Caltex-Woolies in Leichhardt, 4c/L docket discount
2016-07-31	39.03	1.299	50.70	49633	Filled up 98RON at Caltex Kensington, it's pretty cheap right now
2016-08-07	35.93	1.109	39.84	50001	Filled up 95RON at Caltex Kellyville, just hit 50,000 km whoo!
2016-08-??	42???	1.25?	50.00	?	Filled up 95RON but didn't keep receipt, most likely Caltex Kellyville
2016-09-02	28.92	1.179	34.09	5?	Filled up 98RON at Caltex Kellyville, 4c/L docket discount
2016-09-29	34.08	1.418	48.33	51002	Filled up 95RON at Caltex-Woolies on Balaclava Rd
2016-10-03	29.16	1.209	35.25	51364	Filled up 95RON at Coles Express in Lake Munmorah
2016-10-12	29.67	1.249	37.06	51701	Filled up 98RON at Coles Express in Parramatta
2016-10-30	33.82	1.479	50.02	52258	Filled up 95RON at entrance to M2 westbound
2016-11-06	25.71	1.399	35.97	52548	Topped up 95RON at Caltex Kellyville, 4c/L docket discount
2016-11-10	38.97	1.299	50.63	52710	Filled up 95RON at Caltex Kellyville, 4c/L docket discount
2016-11-17	26.75	1.197	32.02	52982	Filled up 95RON at Caltex Kellyville, 4c/L docket discount
2016-11-29	39.62	1.197	47.42	53360	Filled up 95RON at Caltex Kellyville, no discount
2016-12-15	27.05	1.479	40.00	53836	Topped up 98RON at 7-Eleven Kellyville
2016-12-20	23.53	1.489	35.04	54056	Topped up 98RON at Caltex-Woolies on Balaclava Rd
2016-12-22	20.16	1.489	30.01	54203	Topped up 98RON at 7-Eleven Kellyville
2016-12-28	49.08	1.339	65.72	54522	Filled up 95RON at Caltex Kellyville, no discount
2017-01-01	23.02	1.339	30.82	54749	Filled up 95RON at Caltex Kellyville, no discount
2017-01-08	22.31	1.569	35.00	55101	Topped up 95RON at Caltex Kellyville, no discount
2017-01-14	45.84	1.637	75.04	55459	Filled up 98RON at Caltex Kellyville, no discount
2017-01-21	37.25	1.429	53.23	55812	Filled up 95RON at Caltex Kellyville, no discount
2017-01-22	14.06	1.429	20.09	55966	Filled up 95RON at BP Kellyville, no discount
2017-01-28	14.47	1.309	18.94	56117	Filled up 95RON at Caltex Kellyville, no discount
2017-02-01	27.74	1.349	37.43	56393	Filled up 98RON at Caltex Kellyville, no discount
2017-02-19	24.86	1.609	40.00	56842	Topped up 98RON in West Pennant Hills
2017-02-23	25.41	1.574	40.00	57020	Topped up 98RON in West Pennant Hills
2017-02-26	9.56	1.569	15.00	57248	Topped up 98RON in Kellyville
2017-03-10	53.13	1.319	70.08	57566	Filled up 95RON at Caltex-Woolies on Balaclava Rd
2017-03-12	14.83	1.449	21.49	57714	Filled up 98RON in Kellyville
2017-03-17	19.00	1.309	24.87	57905	Filled up 95RON at Caltex-Woolies on Balaclava Rd
2017-03-20	22.50	1.334	30.02	58182	Filled up 95RON in Kellyville
2017-03-26	41.69	1.293	53.90	58590	Filled up 95RON in Kellyville
2017-04-05	38.39	1.229	47.18	58985	Filled up 95RON in Kellyville
2017-04-09	32.92	1.519	50.01	59352	Filled up 95RON in Kellyville
2017-04-24	33.05	1.409	46.57	59769	Filled up 95RON in Blaxland on the way to Blue Mountains
2017-04-26	39.04	1.349	52.67	60160	Filled up 95RON in Kellyville
2017-05-07	13.16	1.519	20.00	60518	Topped up 95RON in Kellyville
2017-05-17	45.97	1.309	60.18	60820	Filled up 95RON in Kellyville
2017-05-21	22.18	1.299	28.81	61039	Filled up 95RON in Kellyville
2017-05-28	22.01	1.289	28.37	61296	Filled up 98RON at 7-Eleven Northmead
2017-06-04	41.92	1.519	63.68	61717	Filled up 95RON at Caltex-Woolies on Balaclava Rd
2017-06-16	31.86	1.329	42.35	62068	Filled up 95RON in Kellyville
2017-06-22	27.56	1.233	33.99	62357	Filled up 95RON in Kellyville
2017-06-25	28.03	1.232	34.53	62669	Filled up 95RON at Caltex-Woolies on Balaclava Rd
2017-07-02	18.51	1.189	22.00	62851	Filled up 95RON in Kellyville
2017-07-12	32.20	1.399	45.04	63201	Filled up 95RON in Kellyville
2017-07-19	32.32	1.269	41.02	63629	Filled up 95RON in Kellyville
2017-07-27	13.12	1.214	15.93	63786	Filled up 95RON in Kellyville
2017-08-05	40.29	1.469	59.19	64233	Filled up 95RON in Kellyville
2017-08-12	28.55	1.394	39.80	64529	Filled up 95RON in Parklea
2017-08-22	47.59	1.299	61.82	65125	Filled up 95RON in Kellyville
2017-08-26	25.88	1.244	32.19	65420	Filled up 95RON in Kellyville
2017-08-31	21.39	1.204	25.76	65639	Filled up 95RON in Kellyville
2017-09-09	37.20	1.439	53.53	66069	Filled up 95RON in Kellyville, 4c/L docket discount
2017-09-20	40.65	1.364	55.45	66536	Filled up 98RON in Kellyville
2017-09-24	23.38	1.329	31.08	66797	Filled up 98RON in Kellyville
2017-10-02	33.67	1.619	54.52	67226	Filled up 98RON in Kellyville
2017-10-12	32.75	1.349	44.18	67588	Filled up 95RON in Kellyville
2017-10-17	19.15	1.334	25.55	67792	Filled up 95RON in Kellyville
2017-10-29	57.26	1.589	90.99	68369	Filled up 98RON in Lane Cove
2017-11-11	47.02	1.339	62.97	68927	Filled up 95RON in Kellyville
2017-11-19	50.31	1.579	79.44	69460	Filled up 95RON in Epping BP
2017-11-28	55.24	1.554	85.84	70053	Filled up 95RON in Kellyville
2017-12-03	23.24	1.439	33.45	??	Filled up 95RON in Kellyville
2017-12-10	47.65	1.619	77.14	70793	Filled up 95RON in Kellyville
2017-12-??	19.12	1.569	30.00	??	Kat topped up estimated 95RON
2017-12-20	56.07	1.549	86.85	??	Filled up 95RON in Rozelle
2017-12-27	56.33	1.584	89.23	??	Filled up 95RON in Stratfield
2018-01-01	44.40	1.379	61.22	72651	Filled up 95RON in Kellyville, 4c/L docket discount
2018-01-12	12.35	1.619	20.00	??	Topped up 95RON in Kellyville
2018-01-27	38.00	1.439	54.68	73210	Filled up 95RON in Kellyville
2018-02-06	37.22	1.314	48.90	73614	Filled up 95RON in Kellyville
2018-02-11	26.73	1.354	36.19	73932	Filled up 95RON in Kellyville
2018-02-23	39.40	1.559	61.43	74491	Filled up 95RON in Kellyville, 4c/L docket discount
2018-03-03	50.00	1.417	70.85	74837	Filled up 95RON in Kellyville
2018-03-05	14.57	1.374	20.02	75016	Filled up 95RON in Kellyville
2018-03-11	24.02	1.409	33.84	75233	Filled up 95RON in Norwest, Coles Express, 4c/L docket discount
2018-03-21	49.02	1.554	76.18	75754	Filled up 95RON in Kellyville
2018-03-28	37.71	1.359	51.25	76143	Filled up 95RON in Kellyville
2018-03-31	16.65	1.359	22.62	76295	Filled up 95RON in Kellyville
2018-04-14	30.88	1.619	50.00	76852	Topped up 95RON at Kellyville McDonalds
2018-04-19	44.48	1.589	70.68	77097	Filled up 95RON in Kellyville
2018-04-25	23.13	1.689	39.07	77763	Topped up 95RON in Neutral Bay, Coles Express, 4c/L docket discount
2018-04-29	51.05	1.689	86.23	78046	Filled up 95RON in Kellyville
2018-05-13	30.00	1.519	45.58	78340	Filled up 95RON in Kellyville
2018-05-24	41.50	1.719	71.35	78789	Filled up 95RON in Kellyville
2018-06-04	42.29	1.579	66.79	79242	Filled up 95RON in Kellyville
2018-06-11	22.55	1.509	34.02	79473	Filled up 95RON in Kellyville
2018-06-21	30.00	1.659	49.77	79786	Filled up 95RON in Kellyville
2018-06-30	23.46	1.499	35.17	80047	Filled up 95RON in Kellyville
2018-07-05	15.00	1.459	21.87	80215	Filled up 95RON in Kellyville
2018-07-22	40.30	1.559	62.83	??	Filled up 95RON in Kellyville
2018-08-12	47.29	1.614	76.33	81090	Filled up 95RON in Kellyville
2018-09-02	44.37	1.669	74.05	81572	Filled up 95RON in Kellyville
2018-09-23	16.01	1.749	28.00	82048	Filled up 95RON in Kellyville
2018-10-05	49.47	1.689	83.56	82xxx	Filled up 95RON in Kellyville
2018-10-25	44.03	1.739	76.57	82818	Filled up 95RON in Kellyville
2018-11-10	34.50	1.399	48.26	83225	Filled up 95RON in Kellyville
2018-11-23	42.29	1.279	54.10	83698	Filled up 95RON in Kellyville
2018-12-15	50.00	1.349	67.45	84282	Filled up 95RON in Kellyville
2018-12-23	25.97	1.315	34.14	84595	Filled up 95RON in Kellyville
2019-01-02	32.33	1.229	39.74	84981	Filled up 95RON in Kellyville
2019-01-17	40.94	1.199	49.08	85439	Filled up 95RON in Kellyville
2019-01-30	40.00	1.419	56.77	85882	Filled up 95RON in Kellyville
2019-02-08	20.00	1.277	25.54	86104	Filled up 95RON in Kellyville
2019-02-15	17.47	1.227	21.44	86304	Filled up 95RON in Kellyville
2019-03-01	46.99	1.359	63.86	86875	Filled up 95RON in Kellyville
2019-03-21	41.78	1.589	66.39	87325	Filled up 95RON in Kellyville
2019-04-12	48.90	1.379	67.44	87837	Filled up 95RON in Kellyville
2019-04-??	xx.xx	x.xxx	20.00	??	Kat topped up some unknown amount
2019-05-09	49.43	1.415	69.95	88605	Filled up 95RON in Kellyville
2019-06-01	44.11	1.377	60.74	89091	Filled up 95RON in Kellyville
2019-06-25	47.44	1.475	69.97	89663	Filled up 95RON in Kellyville
2019-08-02	53.91	1.409	75.96	90325	Filled up 95RON in Kellyville
2019-09-14	51.17	1.639	83.87	90883	Filled up 95RON in Kellyville
2019-10-07	40.00	1.619	64.77	91329	Filled up 95RON in Kellyville
2019-10-27	51.30	1.879	96.39	91903	Filled up 98RON at Epping 7-Eleven
2019-11-17	48.04	1.419	68.17	92488	Filled up 95RON in Kellyville
2019-12-15	50.01	1.829	91.47	93103	Filled up 95RON in Eastwood
2020-02-10	55.00	1.419	78.05	93714	Filled up 95RON in Kellyville
2020-05-08	43.62	1.279	55.80	94150	Filled up 95RON in Kellyville
2020-05-26	46.61	1.189	55.42	94747	Filled up 95RON in Kellyville
2020-06-14	38.51	1.399	53.87	95200	Filled up 95RON in Kellyville
2020-07-11	50.01	1.299	64.96	95777	Filled up 98RON in Kellyville
2020-07-31	45.15	1.379	62.26	96309	Filled up 95RON in Kellyville
2020-08-15	43.00	1.139	48.97	96761	Filled up 95RON in Kellyville
2020-08-29	53.19	1.489	79.19	97326	Filled up 95RON in Parklea
2020-09-06	27.05	1.238	33.49	97678	Filled up 95RON in Randwick
2020-09-26	32.52	1.179	38.34	98020	Filled up 95RON in Rouse Hill - new regular might be the Shell-Coles near home
2020-10-11	45.22	1.629	73.66	98544	Filled up 95RON in Rouse Hill
2020-10-27	32.45	1.329	43.13	98914	Filled up 95RON in Rouse Hill
2020-11-07	27.53	1.169	32.18	99234	Filled up 95RON in Rouse Hill/Kellyville
2020-12-04	45.68	1.239	56.60	99737	Filled up 95RON in Kellyville Ridge
2020-12-21	48.00	1.509	72.43	100303	Filled up 95RON in Rouse Hill, all values estimated because I lost the receipt
2021-01-09	48.14	1.439	69.27	100877	Filled up 95RON in Rouse Hill
2021-01-19	44.00	1.279	56.28	101382	Filled up 95RON in Kellyville Ridge
2021-02-xx	12.50	1.600	20.00	102xxx	Kat filled up 20 bucks somewhere
2021-02-07	52.48	1.358	71.27	102183	Filled up 95RON in Randwick
2021-02-14	28.52	1.338	38.16	102489	Filled up 95RON in Randwick
2021-02-28	41.89	1.438	60.24	103004	Filled up 95RON in Randwick
2021-03-14	5.00	1.749	8.74	103598	Topped up 98RON in Baulkham Hills
2021-03-14	49.00	1.418	69.48	103638	Filled up 95RON in Randwick
2021-03-27	40.26	1.439	57.93	104123	Filled up 95RON in Carlingford
2021-04-05	34.64	1.518	52.58	104502	Filled up 95RON in Randwick
2021-05-02	12.28	1.629	20.00	105120	Topped up 95RON in Rouse Hill
2021-05-02	46.00	1.438	66.15	105173	Filled up 95RON in Randwick
2021-05-23	10.82	1.849	20.00	105700	Topped up 95RON in Kellyville
2021-05-28	27.34	1.829	50.00	105840	Topped up 95RON in Kellyville
2021-06-06	47.80	1.548	73.99	106106	Filled up 95RON in Randwick
2021-06-14	20.06	1.478	29.65	106338	Filled up 95RON in Randwick (Monday night Queens birthday dinner)
2021-06-20	24.31	1.528	37.15	106628	Filled up 95RON in Randwick
2021-07-27	50.44	1.689	85.19	107203	Filled up 95RON in Northmead
2021-10-17	47.84	1.698	81.23	107672	Filled up 95RON in Randwick
2021-10-28	44.29	1.717	76.05	xxxxxx	Kat filled up 98RON in Riverstone
2021-11-14	56.33	1.829	103.03	108796	Filled up 95RON in Parklea
2021-11-xx	??	??	??	??	must be a missed fill here
2021-12-05	53.86	1.859	100.13	109697	Filled up 95RON in Randwick
2021-12-12	35.22	1.759	61.95	110149	Filled up 95RON in Randwick
2021-12-24	49.21	1.687	83.02	110720	Filled up 98RON in Riverstone
2022-01-08	51.14	1.739	88.93	111334	Filled up 95RON in Randwick
2022-01-16	38.04	1.637	62.27	111825	Filled up 98RON in Riverstone
2022-02-02	44.16	1.797	79.36	112313	Filled up 98RON in Riverstone
2022-02-06	22.87	1.749	40.00	112796	Filled up 98RON in Port Macquarie
2022-02-16	12.09	2.067	25.00	113674	Topped up 95 RON in Riverstone 7-11
2022-02-18	52.60	2.149	113.04	113797	Filled up 95RON in Kellyville
2022-03-08	51.29	1.999	102.53	114380	Filled up 95RON in Kellyville (19.39c/km)
2022-03-19	46.01	2.207	101.54	114927	Filled up 98RON in Riverstone (18.56c/km)
2022-04-02	50.88	1.877	95.50	115504	Filled up 98RON in Riverstone (16.55c/km)
2022-04-14	50.05	1.697	84.93	116121	Filled up 98RON in Riverstone (13.76c/km)
2022-05-05	47.81	2.009	96.05	116716	Filled up 95RON in Rouse Hill (16.14c/km)
2022-05-21	50.90	2.107	107.25	117280	Filled up 98RON in Riverstone (19.02c/km)
2022-06-05	48.70	2.097	102.12	117879	Filled up 98RON in Riverstone (17.05c/km)
2022-06-19	44.32	2.309	102.33	118386	Filled up 95RON in Randwick (20.18c/km)
2022-07-03	21.65	2.309	50.00	118920	Topped up 95RON in Kellyville Ridge (unknown mileage cost)
2022-07-28	40.00	2.059	82.36	119068	Filled/topped up 98RON in Kellyville (unknown mileage cost)
2022-08-22	45.00	1.909	85.91	119604	Filled up 95RON in Parklea (16.03c/km)
2022-08-31	35.62	1.897	67.57	120018	Filled up 98RON in Riverstone (16.32c/km)
2022-09-13	45.53	1.889	86.01	120529	Filled up 98RON in Quakers Hill (16.83c/km)
2022-10-02	47.49	2.009	95.41	121031	Filled up 95RON in Randwick (19.00c/km)
2022-10-16	42.01	1.899	79.78	121527	Filled up 95RON in Randwick (16.08c/km)
2022-11-13	20.54	2.209	45.37	122107	Topped up 95RON in Kellyville Ridge (19.56c/km, filled from 10L to 30L mark)
2022-12-06	37.18	1.979	73.58	122136	Filled up 98RON in Kellyville (47.76c/km? Previous reading wasn't accurate >: )
2023-xx-xx	x	x.xxx	xx.xx	xx	Missed fills while car was with Kat's family
2023-03-18	42.38	1.889	80.08	123026	Filled up 95RON in Kellyville Ridge (mileage unknown)

2016-03-10: 773km, 86L, 11.12L/100km, 14c/km so far. I am a heavy city driver.
2016-03-23: a 187km joyride up to Putty Road consumed 10.7L/100km on average, equating to exactly 20L for the trip. Assuming average of last fill and current fill, that's $25.50, ouch.
2016-03-29: Home, work, city, Kat's place, home; can be done for about 7.5L/100km if I'm reasonable, about 95km or so.
2016-04-25: Filled up with 46,196 on the odometer, having travelled 2959 km since purchase while consuming 298.82 litres of fuel. Average mileage of 10.1L per 100km.
- That's $492.65 spent on fuel, or 16.65 cents per km.
- Average 44km to go visit Kat and return home == 4.4L == $7.32
  - That's actually cheaper than public transport, just considering fuel costs ($4.50 each way)
  - Fuel consumption is lower when I do a whole-day round trip including work at ATP. If it were fair scaling, that'd be 3.67L == $6.11
2016-08-07: 6764km, 670L, 9.91L/100km, 12.36c/km so far. My drives tends to be a bit heavy.
- That's 163 days, or 23.25 weeks. Averaging $36/week on petrol, driving 291km/week while consuming 28.82L.
2019-09-14: We drive a lot less now, which is great. In the last 4 months or so (18.2857 weeks) we've driven 2278km, consumed 196.63L of petrol, and spent $290.51 on it.
- That's about 12.75c per km travelled, and mileage of 8.63L per 100km. Nice!
- We're driving about 125km per week, or 540km per month. That's gonna put us way down statistically; unless we do some big road trips that's under 7000km per year.
2022-06-19: In the last 17-and-a-bit weeks we've driven 4589km, which equates to 270km per week.
- Assuming 4.33 weeks per month, that's 1150km per calendar month.
- In that time we've consumed 390 litres, meaning our economy is almost exactly 8.5L per 100km.
- 1150km per month means we're consuming 98 litres per month. This is up from last time I worked the budget, which assumed 80L/mon.
- To be safe, budget for 105L/mon. Prices are peaking around $2.25~2.30 per litre. That's $236/mon.

Driving further for cheaper fuel

Riverstone Petroleum is much cheaper than the big brand servo chains and you get ULP 98 instead of 95 while you're at it. Assuming you don't care about the latter, is it worth it travelling the extra distance for cheaper fuel?

A round-trip from home to Riverstone is about 14km, and it's not on the way to/from anywhere, which means we'll consume 1.12L of petrol just to do it. In monetary terms that's about $2.60, so you'd better be making that up in savings.

If Riverstone is 10c/L cheaper, which is a fair guess, then it's worth making the trip as long as you're filling up 25L or more. To generalise this to an equation:

X = number of litres to break even
x = price of fuel at expensive servo, in cents (eg. 233)

X = 1.12 * ((x/10) - 1)

Perhaps of more interest, how big a difference is worthwhile for a normal fillup? We tend to fill when the tank is down to quarter full, meaning a 45L-or-more fill. Let's use 45L as the benchmark.

x = expensive price = 233c for this exercise
y = price gap at cheaper place, in cents

Find breakeven with these simultaneous equations:

45L at 233 cents = $104.85 (real)
46.12L at (233-y) cents = $104.85 (hypothetical)

Breakeven would be at 227.3c/L, meaning y = 5.66c difference. Rework the equations:

1.12x = 46.12y
x = 41.179y
x/41.179 = y

So Riverstone had better be at least "Big Chain Price divided by 41.179" cents cheaper. Because we're happy enough to err on the side of doing less driving, just round down and make it a factor of 40.

Take the Big Chain Servo price in cents, divide it by 40. If Riverstone is at least that many cents cheaper, it's worth it.

If petrol were $5.00 per litre, then Riverstone needs to be 12.5c cheaper to be worthwhile. If petrol were $1.20 per litre, a difference of 3c would be worthwhile.

C200 Kompressor

Date	Quantity (L)	Unit cost ($/L)	Total
2015-08-15	18.76	1.599	30.00
2015-08-19	35.60	1.589	56.57
2015-09-03	52.30	1.499	78.40
2015-09-12	18.42	1.629	30.00
2015-09-17	42.44	1.539	65.32
2015-09-21	23.48	1.379	32.38
2015-10-05	47.05	1.359	63.94
2015-10-18	45.72	1.494	68.30
2015-10-29	46.26	1.459	67.49
2015-11-13	39.45	1.409	55.58
2015-11-23	50.54	1.429	72.23
2015-11-27	21.78	1.469	32.00

Took ownership around 2015-08-08, which is 16 weeks ago (now 2015-11-28).

Total cost is $652.21 which amounts to $40.76 per week. I've driven *roughly* 4000km, which makes it **about 17c per km**.

Total consumption of 441.8 litres, making it about 11L per 100km, or a little less possible. That's pretty much as expected for urban driving, but I've definitely done plenty of open road driving as well, which should have dropped it somewhat.

Car was sadly written off as a result of the engine being flooded during torrential rain, around January 2016.

Useful(?) links

Navigation

Maki the CX5

Bismarck the Giulietta

Driving further for cheaper fuel

C200 Kompressor