This is the best oil I’ve ever seen it’s the REAL mystery oil. Put it in old turbo 4 banger and made it’s so much quieter and I feel like it’s faster somehow too! Then I put it in my other v6 3.8 and it’s runs like a sewing machine 🚙 💨 soon as I replace my valve cover on the m3 I’m using this and on everything else I own

2014 Jeep Sahara with a built 392 conversion. 72,000 miles on it. Engine was running fine, but as soon as I put the proline in it, the sound changed. Ran it a week and the overall performance of the engine continually improved… smoother idle, acceleration, and driving. Changed all the fluids in the jeep and noticed continued improvements in all components. I’ve had pro Lube in the entire jeep now, it has truly transformed it into a much much smoother operating vehicle… The fuel mileage was averaging 11.4mpg in town, 12.6 highway. Now it is consistently 12.9 town, 14.6 highway.