Bmw.

ceebee2, Jul 3, 11:53pm
What sort of BMW is it! and year might get a reply!

If its an old carburetted one it will be a ruptured petrol pump diaphragm.ready to explode and blow the rocker covers off!

What makes you think its petrol in the oil if you don't mind us asking!

doug207, Jul 4, 1:03am
What year!

thunderbolt, Jul 4, 4:35am
Overfuelling! must be some wicked bore wash though.

ice13, Jul 4, 4:49am
9 litres lol !

saxman99, Aug 27, 2:08pm
Could be rooted fuel injectors leaking fuel through the cylinders and into the sump overnight.Had an Audi that did that once.