Any opinions on this stuff welcome please. Seems legit... PTFE and all. Use to run in other vehicles, wondering if it really helps with friction??
Cooker said:It's junk. Do not put it on your Cummins or any other vehicle you own.
I change my oil every 3000 miles and new filter also. I use Rotell 15w40 and no problems.ChrisKringle said:Any opinions on this stuff welcome please. Seems legit... PTFE and all. Use to run in other vehicles, wondering if it really helps with friction??