REVIEW: 2020 Duramax 3.0 Diesel

Duramax vs Powerstroke vs Cummins

bp - Try our new BP Ultimate Diesel with ACTIVE...

Everything you need to know about our supercharged Duramax

I Mixed 3 Different Oils in my Duramax Diesel Just to see What Would Happen. The mixture contained Mobil Delvac Synthetic 15W-40, Shell Rotella T6 Synthetic 5W-40, and Valvoline Premium Blue Extreme Synthetic 5W-40. This is what the oil looks like after 600 miles…. It looks like diesel oil 🤷🏻‍♂️. Dark… Not surprisingly, it looks normal. 600 miles is really early to sample oil for analysis, but you guys are persistent. Hopefully we will have the results in early January. #engineoil #oilchange #