I did an in depth morning cold start video. Documenting MPG, Water temp, valve tick, and piston slap. Now I am editing it.

You will be able to make your own decisions from these videos. final take, it took 3 days for any increase in MPG. Piston slap is gone. , morning lifter noise is much shorter, no change in water temp but very notable throttle response. I’d give Prolube 2 thumbs up. Too bad they only accept 8 second videos. Maybe Prolube would like the full versions

I’ve used Lucas for years and have never quite got the results from it like I have with the pro lube product. Almost instantly noticed my little tick quieted down. Everything feels smooth.

Good stuff, a lil pricey but if the longevity is better than I expect it will be well worth it.

Thank you

6 States, 3,500 miles, Motor running time 52 hrs, in temps from 32f to 112f, and running hard.

Never missed a beat, motor oil still smells new, looks a little darker but that is expected, and notice the top end rattle of the Harley Davidson 117 inch, M8 motor is so much quieter.

All done without oil changes due to recent maintenance on all.

Added to my 08 GMC sierra.

Added to my 54 chevy 400.

Added to my husqvarna riding mower.

All seems at this time to have better idle and the slight knock on the 400 is no longer.

I'm looking to add to my oil change on my 83 harley shovel head shortly,my oil and clutch are separate so not in the clutch.

As of now I feel this additive works and will give updates as time goes on.

Thanks!