Maintenance Log for 2007 Lexus IS250
Total Maintenance Cost Lifetime:
- 2018: $2,900 (warranty)
- 2019: $600
- 2020: $2,035
- 2021: $875
Total: $6,410
Currently, I'm averaging $2,137 a year in maintenance cost but this is due to major repairs due on engine and suspension.
However, prepaying with a warranty helped defray $1,600 in additional maintenance. Otherwise, the true cost would be $2,670 per year. In either scenario the cost of this car was too high and not worth owning as even larger repairs were likely due like a short block, transmission, etc.
Maintenance Cost by Type
- Consumables (21%)
- Tire Services: $460
- Brakes and Rotors: $1,100
- Battery: $50 (true cost $150)
- Preventive (17%)
- Oil Changes: $1,400
- Engine (30%)
- Alternator: $100 (true cost $1,100)
- O2 Sensor: $100 (true cost $600)
- Valve Cover Gasket: $100 (true cost $700)
- Suspension (31%)
- Front Bushings: $100 (true cost $800)
- Rear Axle: $100 (true cost $1,700)
Total Maintenance Cost: $3,510 (true cost $8,010)
Warranty Cost: $2,900 (total paid $ 6,410)
Most of the cost was in Engine and Suspension at 61% followed by standard oil changes, tire and brakes.
2018
- Warranty: $2,900
2019
- Alternator: $1,100 ($100 deductible)
- Battery: $150 ($50 deductible)
- Oil Change x2: $450
Total Maintenance Cost for 2019: $600 (true cost $1,700)
2020
- Front Tires: $400
- Front TPMS sensor: $60
- Brakes & Rotors x4: $1,100
- Oil Change x2: $475
Total Maintenance Cost for 2020: $2,035
2021
- Front Bushings: $100 (true cost $800)
- Rear Axle: $100 (true cost $1,700)
- O2 Sensor: $100 (true cost $600)
- Valve Cover Gaskets: $100 (true cost $700)
- Oil Change x2: $475
Total Maintenance Cost for 2021: $875 (true cost $4,275)
Gas Mileage Log
7/31/20: 27 mpg
- Achieved 27 mpg on my most recent fill-up. This is impressive, considering I was getting 23-24 mpg before the new tires. It's about on par with what a 2007 IS250 should get with mostly highway miles.
8/21/20: 27 mpg
- Consistency noted as I clocked in just under 27 mpg for my next fill-up, which is interesting since it coincides with my reduced weekly driving during COVID-19.
9/11/20: 26 mpg
- A slight drop to 26 mpg after three weeks of driving. Monitoring to determine any causes.
9/29/20: 26 mpg & Boyle's Law
- Filled up earlier and adjusted tire pressures after noticing both rear tires were inflated too high. This ties into Boyle's Law, which explains how tire pressure can change with temperature.
10/1/20: Boyle's Law Observed
- Confirmed front tire pressures were low after cooling down; will top off before heavy driving.
11/24/20: 26 mpg
- Mileage remains steady; I missed recording a previous fill-up, and I suspect the benefit of new tires on mileage may wane over time.
12/31/20: 26 mpg
- Recent oil change didn't yield noticeable improvements in gas consumption.
1/17/21: 27 mpg
- Noted an improvement to 27 mpg, possibly due to the oil change and properly inflated tires.
2/5/21: 26 mpg
2/23/21: 26 mpg
- Steadily holding at around 26 mpg with consistent fill-up intervals.
3/11/21: 27.4 mpg
- Impressive results after a long-distance trip, suggesting that driving patterns influence mileage.
4/19/21: 24 mpg
- Noted a drop in gas mileage, possibly due to increased traffic.
5/6/21: 25.5 mpg
- Slight improvement, but still below expectations.
5/24/21: 25 mpg
- Ongoing struggles with mileage; discovered an obstruction in the cabin air filter, improving A/C efficiency.
6/11/21: 24.5 mpg
- Dropped in mileage after running near empty before refilling.
7/31/21: 26 mpg
- After major repairs, mileage returned to 26 mpg, indicating previous issues affected efficiency.
8/10/21: 24.5 mpg
- Noted a significant drop due to heavy traffic conditions.
8/25/21: 25.8 mpg
- A slight improvement from the previous fill-up, but still below my hopes for 26 mpg.
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