As the GM recall has scared me to death via the oiling system on the 6.2 power plant. I immediately updated the viscosity change to 0-40. I also took the extra step of adding 8 ozs of Prolube to my crankcase. I noticed an almost immediate change in the smooth idle . I have only ran 1 tank of fuel through it so far but I am convinced it has picked up additional mpg as well .

I’m sold on the product 👍

I've used just about every oil additive on the market. My truck is the way I pay my bills and provide for my family, I used pro lube in my cummins 6.7 and I have picked up over 1mpg since adding it to my oil. Also my oil temp when towing is 20 degrees cooler than it used to be and I don't have upper cylinder rattle anymore. I will definitely be buying more!

No matter what I’ve done, this thing sounds like a dang sewing machine when it’s idling. Sounded slightly better after a valve adjustment, but still tick tick ticking. I saw the ad for ProLube and thought… why not give it a shot. It works! The car has 80,000 original miles on it and now it sounds better than new. I’ll be using it in all my small engines and definitely this BMW from now on.