Timing belt: the interval that is genuinely due
The cost of timing belt replacement runs from $367 to over $3,000 depending who you ask — and the first question is whether your car has a belt at all.
Vehicle maintenance costs taken apart line by line — what the part retails for, what the book time is, and whether the service is actually due yet.
Recently decided
Serpentine belt replacement, and the noise that precedes it
Serpentine belt replacement cost runs under $215 nationally, and there is no mileage at which it falls due — the company selling it says so itself.
Condition, not mileage · Repair or replace
Wheel bearing replacement: what it costs and how urgent it is
Wheel bearing replacement cost at one wheel, from two published sources that agree for once — and the sentence one of them prints that saves you the other side.
Yes, now · Repair or replace
When a repair costs more than the car is worth
Car repair cost against the car's own value: why the percentage rule answers an insurer's question, and the per-month sum that answers the owner's.
Per month, not per cent · Repair or replace
Synthetic against conventional, priced over a year of driving
Synthetic vs conventional oil, priced by the year not the visit: on KBB's own figures synthetic costs less annually at every mileage, to a price ceiling.
Synthetic, under $133 · Oil and fluids
Coolant flush pricing, taken apart
Coolant flush cost is published at $131–$209 by one incumbent and $440–$512 by another. The parts line is the whole gap, and the two pages price different jobs.
Two prices, two jobs · Oil and fluids
Cooling system flush: what the service is worth
Cooling system flush cost averages $131 to $209, but the interval on the same page runs 30,000 to 100,000 miles. What decides which end of that you are on.
Due on the spec, not the year · Oil and fluids
Transmission fluid change: the interval nobody agrees on
Transmission fluid change cost runs $80 to $356 across three published sources. The quart count explains the spread; the manual decides if it is due.
Read the manual first · Oil and fluids
How long an oil change takes, and why the wait is the upsell window
How long does an oil change take? Fifteen minutes at a quick-lube — and the three services offered during that wait are priced here at more than the oil change.
15 minutes, $285 of offers · Oil and fluids
The oil change interval the manual gives, against the sticker
Your oil change interval is claimed by three documents: the manual, the windscreen sticker and the car's own monitor. Which governs, and why they disagree.
Manual, then monitor · Oil and fluids
Conventional, blend or full synthetic: what the upgrade buys
Conventional oil change cost against synthetic, priced per visit and then per 1,000 miles — where the gap nearly doubles, and then very nearly closes.
Per mile, a wash · Oil and fluids
Oil changes: what one costs and how often you actually need one
Oil change cost, from two published sources that differ by more than five times — and the parts figure one of them prints a few lines from its own shop price.
The interval, not the price · Oil and fluids
DOT 3 or DOT 4: whether the upgrade is worth paying for
DOT 3 brake fluid against DOT 4 on the federal standard's own boiling points — and why old DOT 4 is worse than fresh DOT 3 at the moment it matters.
Change, don't upgrade · Brakes
Front brakes and rotors: what the parts cost and what the shop adds
Front brakes and rotors cost split into materials and everything a shop adds on top, and why the rear axle usually does not need doing at the same time.
Front axle only · Brakes
Brake booster repair, and the symptom that precedes it
Brake booster repair costs $965–$1,108 by the national estimate — and the cheaper vacuum fault that produces the same hard pedal and should be ruled out first.
Test vacuum first · Brakes