Metal Treatment Concentrate Oil Additive (MTC) 1/2 Qt (16oz/473ml) Bottle - Military Industrial Grade

I put 1/3 of the bottle in a 2012 Odyssey and 1/3 in a 2005 Suburban 1500 (5.3 ls). The Suburban and Odyssey already had half a bottle each of Slick50 in them, with synthetic mobil1. On the first drives after adding it, their idling RPMs dropped by about 50-100rpms each. On the Suburban (230,000 miles), the already deep and pleasant, "nah nah nah" sound of the idling motor was replaced by an even deeper "wa wa wa" sound that tricked a longtime multiple 5.3ls engine owner into insisting that I actually had bigger 6.0 motor, based on the sound alone. I also don't hear any more higher pitched rattling or scrapey noises when the motor starts, and so my 20 year old motor with nearly a quarter million miles, that was a cheap restored salvage vehicle anyways, now sounds amazing.So...I'll likely keep buying more of this as I now think it actually helps.

It sealed my valves and increase my milage

Doing the pre-treat right now already improved my fuel economy by a mile and a half per gallon and we have over 5,000 mi on our oil

I believe this product works but my goodness please correct your mispelling at the back. It’s been more than 5 years I think and the word “dorection” has not been corrected. Very unprofessional. Please change it.

Great product that has significant results! I had previously been using STP ultra in my vehicles the past 4 years which was an alright product. But after adding Polytron in my 2001 Infiniti QX4 instead, I have noticed a big difference in engine performance. The engine sounds more quiet and feels much smoother as well as improved fuel economy and restored HP. I like the fact that it cleans the engine and keeps it clean from sludge and other deposits, not to mention that it treats the metal of the engine reducing friction, as opposed to other brands of oil additives which usually just treats the oil. You wont get results instantly but you will notice the difference after putting at least 50 miles or so after you add polytron. Great if you have a lot of mileage on your vehicle. I would reccomend this product.

I met the man who brought this product to America. it was a Russian developed machine lubricant. That was over 30 years ago and at that time I did the load bearing tet myself with all the other top brand additives (slick50, duralube, etc) and nothing came close to this in bearing torque load to stop the bearing from rotating. FF 30 years later, I have a 1989 Chev C1500 pickup I put this in 30 years ago and I now have 640,000 miles on this engine and running strong. Look up the spec sheet on the reduction of wear with this product...it cuts startup wear by 97%.

UPDATE 6/3/21TIME TO ADD THIS IN MY 500 ATV AND 700 6X6. I HAVE NEVER HAD AN OIL RELATED ISSUE.THIS IS USED TO LUBRICATE DIAMOND DRILL BITS.TRY THIS, ITS THE BESTEXCELLENT PRODUCTS. BEEN USING BITRON FOR A DECADE. NEVER ANY ISSUES. THIS IS THE BEST. HONESTHad a valve tap on my 2000 Polaris atv. Added this to oil. In 2 days the noise was gone. AMAZING STUFF

It has been a big doubt to me. I used it both in my 2001 Nissan Pathfinder of 100K miles and 2011 Toyota Highlander of 65K miles. I see no difference in engine performance or noise reduction. Anyhow, I can forgive that, but it is not excusable that the maker presented the misspelled printing upon the bottle. "Direction" was misspelled on my bottles' printing. The misspelling raised a red flag to me about the quality of this product.