Inliners International Forums General Discussion Engines Which oil ???

I agree with the zinc missing in diesel oils. That is why I use GM EOS.
Which one of the STP oil treatments do you use?

There is also a synthetic diesel oil with lighter viscousity. I use it in my F450 Diesel. Starts way better in the winter.

Speaking of winter it sleeted here tonight, just a light reminder of what is coming. Tom