How Often Should You Change Your Oil? Intervals, Oil Types, and Cost
Most cars made after 2010 go 7,500–10,000 miles between oil changes on full synthetic — the 3,000-mile rule comes from an era of conventional oil and looser engines. Your owner's manual is the authority, not the sticker on the windshield.
Short trips, towing, and dusty driving shorten the interval — that's what 'severe service' means in the manual. Here's how to read your own situation and what the service should cost.
1. Read the manual, not the windshield sticker
Many cars go 7,500–10,000 miles on synthetic. The manual also gives a months limit — whichever comes first is the interval, and low-mileage drivers hit the time limit, not the mileage one.
2. Know which oil your car takes
Most cars after 2010 need full synthetic; check your owner's manual rather than the upsell sheet. Using the wrong weight costs more in wear than the oil saves in price.
3. Check the level yourself between changes
Pull the dipstick monthly. Oil that drops between changes means a leak or burning worth mentioning at the next visit — catching it early is the difference between a top-up and a repair.
4. Make sure the price includes the filter and inspection
A proper oil change includes the filter and a multi-point inspection. Ask whether both are in the quoted price before they start — it should be yes.
5. Decline the add-ons you didn't ask for
Flushes and treatments are the classic upsell. Decline unless the shop shows you a reason — a sludge problem on the dipstick, not a line on a checklist.
What it costs
Typical in Richmond, VA: conventional $45–$75; full synthetic $65–$125 independent, $100–$160 dealer. Most cars made after 2010 need full synthetic — check your owner's manual rather than the upsell sheet.
When to call a pro
An oil change is routine — but if the shop finds a leak or metal in the oil, get that diagnosis in writing before approving more work.
Common questions
Is 3,000 miles still the rule?
No for most modern cars on synthetic — follow the manual's mileage or months, whichever comes first. Severe service (short trips, towing) shortens it.
Can I switch to synthetic on an old car?
Generally yes — synthetic won't cause leaks, though it can reveal existing ones by flowing more freely. If the engine already weeps oil, fix the seals first.
What if I drive very little?
Time matters too. Oil degrades sitting in an engine, so the manual's months limit applies even at low mileage — usually 6–12 months.
Data by Servik — verified local pros from official license records and public sources. Cost figures are typical ranges, not quotes; a pro's written estimate is the real number.