TRIAX Fleet Supreme 15W-40 Full Synthetic

Made my 6.7 purr

I Just started using Triax brand but right after I did the oil change I noticed a quiet down of the valve train and it seems the motor loosened up a bit. I am doing a complete fluid swap on my truck with Triax starting with atf transmission, transfer case, then diffentials. I was using T6 but Im sure this is a better oil. Probably run 5000 first change just to flush out the old oil then may try 7500 since I tow a lot

Oil change

Great price point on the oil. plan on changing tomorrow will know more about it after that

Using this for 3 years and it has proven to be very good oil for the extreme temps here in WI

Very impressed with the oils, I exclusively use this in my Tractors, Trucks. In cold weather the oil has been holding up great and for our summers where it can get to triple digits.