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Oil leaking after an oil change usually points to the drain plug or filter. NHTSA records also show defective filter housings. Here is where to start.

Oil pressure light after an oil change? Carmakers must show the maintenance caused the damage to deny a claim. Here is what to check and ask.

Hybrid oil change interval has two clocks, miles and months. Toyota’s 2026 Camry Hybrid guide counts both. Here is what to check in yours.

High mileage oil targets engines past 75,000 miles, yet Toyota’s 2026 Tacoma guide never mentions it. See whose number that really is.

Synthetic vs conventional oil costs compare fairly only per mile. See the break-even table and where Ford’s 2020 F-150 manual caps the interval.

Oil change every 6 months is Subaru’s printed limit, not a rule every maker shares. See what four makers’ own documents say.

Severe service oil change rules turn on one word: Ford 2020 says primarily, Toyota 2026 majority, Kia 2026 any. Find which test your driving meets.

Toyota 0W-16 oil changes aren’t on every 5,000-mile visit. The 2024 RAV4 guide lists oil at 10,000 miles unless your driving is hard use.

GM oil life monitor: coolant above 260°F (126°C) sends it to 0%, GM’s bulletin says. See how that fits with the 7,500-mile and one-year limits.

Oil life percentage isn’t mileage: Ford says a heavy-idling vehicle may hit its alert at 7 months or 4,000 miles. See what each maker counts.