XADOHighway - Oil Additive for Car Engine - High-Mileage Motor Revitalizant Restore Treatment - for Gasoline, Diesel and LPG Engines, Worn Metal Parts Repair - Atomic Metal Conditioner (Bottle 7.5oz)

great thing! I'm happy with it!

So I followed instructions and let my car sit overnight. Next morning I honestly couldn't believe it ran smoother. It definitely is saving on gas mileage after driving for a few hours. Give it a try.

I am a big Xado fan after using this product and the auto trans product. They work like they say they do. My engine runs smoother and has more power after using this engine treatment. I will use the more $$$ one for my new car as they have a different app for that. My trans no longer sticks in gear where I have to manually override, all fixed.

I have used XADO products for over a decade, in multiple vehicles. I have recommended this product to many friends. Invariably, they express their genuine appreciation for the recommendation. If you intend to keep a vehicle with an engine in great condition, this product is just great.

XADO PRODUCTS WORK !!! Not snake oil, but real proven (especially to me) to work !!

Could be better

My vehicle still uses a little bit of oil, but it seems like the mileage has gone up by about 2 miles per gallon

Used 1/2 a bottle in a 2001 Jeep inline 6 and 1/2 in a 2006 6.1 hemi both considerably running quieter and getting a little bit better fuel mileage out of Jeep.