Engine oil discussion

[biscuits and gravy]

Thanks for sharing the link.

Amazing that the Walmart oil Supertech has the 2nd highest rating for Zinc count. My dumbass thought that I was doing better by passing over Supertech and buying Rotella, when I actually would have been better off with Supertech or Delo400.

I would be interested in seeing the test results for 2016. I think that link is for 2103.

I recently saw a bottle of 15/40w Valvoline and it had a Cummins reference noted as approved; and the Cummins badge symbol on it. It would be interesting to see what the real world lab results are for Valvoline also.