Review on AR9100 Friction Modifier - 1 Gallon Bottle For Treating Up To 128 Quarts Of Engine Oil by Eliot Wahl

Hands down best stuff on planet earth! If you don't know anything about this product you have to go read the information on the website first.Use this in my diesel and all gas machines. Noticeable difference, better fuel mileage in me 6.0 Excursion and absolutely no problems with cold or slow starts because of sticky injectors. My car and motorcycle also received better fuel economy along with smooth idling and driving. I would suggest this to anybody with a diesel and also recommend pairing it with AR6200 fuel modifier which has also made a difference. Working for a Ford Commercial Dealership I see what works and what doesn't, this stuff works, Don't take my word for it. read up on it! AR6200 (16 oz) Fuel Modification Complex (Treats 1280 gallons of fuel)