Anybody have any opinions on which is better, Delvac 1 or Mobil 1 0W-40? Does anyone have analysis results on Delvac 1? Does it have moly in it?
I have seen Delvac 1 at truck stops but no retail places in the Denver area, so it is harder to come by than 0W-40.
I have used Mobil 1 10w-30 in my Toyota PU since it was new and have been very happy with it, when I take of the valve cover to adjust clearance, it looks like new even after 150000 miles.
It would be nice to give my WRX the best mobil has to offer, not comfortable with Redline or Amsoil due to the lack of API cert.
Thanks for any opinions, Dan