Has returned! Glad
to be back.
AO Silver Member
Join Date: May 2007
Location: United Kingdom
Re: Help - where has all the oil gone?
Sounds to me like you might have a small hairline crack in the sump or elsewhere.
When the engine gets hot the metal would expand the crack ever so slightly, coupled with the fact that oil gets thinner when hot, so it would be coming out whilst you're driving.
When the engine starts to cool, the oil would get thicker and the crack would close, effectively blocking it off again.
You'd get a few drops of oil on the floor as it cools, which you are, but the majority of lost oil would be lost whilst driving about.
Get underneath with a really bright white light and have a look over everything.