Prolube Oil Treatment - Engine Oil Additive for Gas & Diesel Engines - Reduces Wear, Noise, Vibration - Boosts Fuel Economy & Horsepower - Works on Transmissions & Differentials (16oz)

Ok, I’ve been a car guy my entire life, working on my own cars keeping them running. I used this stuff on my 2003 trailblazer with the 4.2 inline 6. It has 192k miles on it. And cold start it had a loud lifter tap and a little bit of piston slap as well until it warmed up. The lifter tap stayed (quieter) but was still there with the engine warm. Yesterday morning I changed the oil again. Did the double dose (used the 16oz can). And first start after oil change the cold start tap was 90% gone. Drove it last night and when I got home it was completely quiet at idle warm. This stuff absolutely quieted 90% of the cold start lifter noise, and completely 100% quieted down warm lifter tick. It works amazing and I’ve always been skeptical. Especially something I found on instagram reels. But try it. It really does help a lot, it is expensive but I’ll keep using it with the results. To add, it may be a placebo affect from the lifter tick going away. But throttle response seems improved, and it seems to have gained some power. Not a ton, but noticeable enough to make you happy after your first drive trying this stuff.

10 stars this is the real deal. I put 3 oz in my transmission as directed on instructions and it immediately stopped the shudder that occurred even after a tune. Also I put it in my engine oil and the engine definitely has a smoother feel with significantly less noise. This product is far better than anything related ie (lucas oil) officially have been converted to a believer. Value for money is bar none buy some now, especially if you drive a Silverado with afm and a 6l80/90 transmission this stuff is gold!!

I have a 2024 Mustang GT Performance and imminently got 4mpg increase and the engine was A LOT quieter at idle and deceleration. It was also a lot smoother. This stuff really works, I'm not used to that. Usually stuff like this is snake oil.

Quiet and up my lifter tick very well, use it in my lawnmower too, great product

I've tried alot of different thing over the years, and this is amazing. Quiets lifters down, smoothes engines down. Could work on the price for the working man though.

This stuff works! Thus far, I’ve added it to my diesel truck, Harley motor and the primary fluid on that bike. I added it to my son’s Nissan when I changed his oil before he headed out after Christmas. It made everything run better and more quiet! My diesel truck has improved mpg by at least 1 mpg driving the same roads. I put some in my mower. I use Amsoil or Schaefer full synthetic oil, it has improved every machine it went into. I’m a believer. It’s not expensive either, you only need a few ounces. I still have over half the can left after treating 5 items. Next is my Harley Transmission. I am not a paid influencer…just a dude who likes to care for his equipment.

I have two motors that have oil ports. one is on a furnace and i injected oil treatment, and the fan sounds smooth and no sound. this is a fantastic lubricant used on a 50-year-old exhaust fan i have a fan that i used in my heated garage to circulate the electric heater, heating in a 2 1/2 car enlarged garage. the fan was making noise and had to be constantly lubricated. i injected Prolube and the fan is now running quietly this is a awesome lubricant. i suggest that after a vehicle gets 25,000 miles to start using Prolube in the engine. do not use before in any vehicle when you first buy it because you want the motor to break in and seal and set everything. if used to soon the motor could burn oil because the rings did not seat. i would suggest GM use it on their pickup trucks that the motor parts are wearing out i would suggest GM tell people after they find out a good break in mileage to start to use the Prolube Engine Oil Treatment.

I have watched many videos of guys using this product on their vehicles that have a slight tic as the engine is running. My first thought was ' surely it doesn't work that well. I have a 2005 z71 Silverado that has had that tic in it for about the last 3 or 4 years. I measured out the required amount according to directions and thevtic was gone in about 5 seconds. It really does work. One of the few products that works exactly as advertised or maybe even better. Good job pro lube.