Originally Posted by kellysguy

I run the CHEAPEST stuff I can find in my VW diesel and NEVER change it (it leaks so I just refill). No problems so far in 60K and 6 years. Inside of motor is nice and clean (no sludge). Don't be fooled, you would be suprised to see what you can get away w/ in a diesel. I think I may have changed it once, just out of guilt. I do like Valvoline, that's what I use for customer cars and things I care about. Castrol too and Mobil 1 (in my lawnmower, I have a VERY expensive lawnmower