Symptoms
- Oil puddle or drip appears for the first time shortly after an oil change
- Leak seems to be coming from the bottom-center area near the oil filter or drain plug
- Oil level on the dipstick reads lower than expected soon after the service
- No leak was present before the oil change
Likely causes
- CommonOil filter not tightened properly or installed with a damaged/missing gasketA very common cause of a fresh post-service leak, especially with a DIY oil change or a rushed shop visit.
- CommonDrain plug not tightened to spec, or a damaged/missing washerOver- or under-tightening the drain plug, or reusing a worn crush washer, is a frequent source of a new leak.
- PossibleAccidentally disturbed a nearby gasket or seal during the serviceWorking near the valve cover or oil pan during a filter change can sometimes loosen or damage an unrelated gasket.
What to do
- With the engine cold, check the oil filter for proper tightness and look closely for oil seeping from around its base.
- Check the drain plug for tightness and inspect for a proper, undamaged crush washer.
- Wipe the area clean, then start the engine briefly (just to build oil pressure, a minute or two) and check again for a fresh drip at the filter or plug specifically.
- Retighten the filter or plug to the correct torque spec if either looks loose, being careful not to over-tighten and strip threads.
- Return to whoever performed the oil change if it was done at a shop recently, since this is generally covered as a comeback repair at no charge.
Tools and parts
- Oil filter wrench
- Torque wrench
Correct oil filter and crush washer for your vehicleSearch: “oil filter crush washer”
When to call a pro
Return to the shop that performed the oil change if applicable, since this kind of leak is typically their responsibility to fix at no charge; otherwise a quick DIY check often resolves it.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.