Answer
Sep 21, 2025 - 11:31 AM
Easy one! On the Citroën C25 (1981–1993), you’ll fill up the engine oil through the oil filler cap, which is typically located on top of the engine valve cover — usually a round black or silver plastic cap, often marked with an oil can symbol.
Depending on engine variant (petrol or diesel), the location might vary a bit — but it's always up top, and you can’t really miss it once the hood’s up. Just unscrew the cap, pour in your oil (use a funnel unless you like cleaning messes), and double-check your dipstick after letting the oil settle a bit.
