Quote:
Originally Posted by Prodrive_X
I remembered this message today 
Bmw x5 with n54 engine after 14.000km
Bmw 320i n20 engine stock after 10.000km
Audi a4 b9 2.0tsi stage3 after 7.000km
I changed the oil in these 3 cars, the oil came out very black in the x5 and the audi a4 I can say that it is identical to a diesel engine.... the 320i came out cleaner, I never looked at the color of the oil but today I was attentive , in my car the oil never came out so black, even after 8,000km, the conclusion is that even in street use and stock engine I would not exceed 10,000km, modified cars with mixed street/track use would not exceed 5000km, only track use, each trackday.
Stay away from olive oil even for street use  |
You realize that the oil color means absolutely nothing though, right? In fact, darker oil means it's holding more contaminants in suspension.