oil cap

Reservoir twist cover

An oil cap is the removable cover on an engine's oil filler opening, where oil is added during changes or top-offs.

The cap typically screws or snaps onto the valve cover and is marked with an oil can symbol or the word "oil." A missing or loose oil cap can cause oil to spray out and trigger warning lights.

Related

reservoir · twist · screw top · seal · garage · mechanic · lube job · hood · under the hood · valve · thread · plastic · yellow · check · check engine · top · pour · funnel

Categories
Opposites
engine oil system function

oil capdrain plug

Removable basin stopper

fuel cap · fuel door · radiator cap

Family

oil, cap, oils, oiled, oiling, oily, oiliness, caps, capped

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G