Xtreme Green Fuel Max Plus+ One Shot Does It All! Boosts Power and Performance - Helps Improve Fuel Economy for Gas and Diesel (Pack of 6 x 20ml bottle)

I used this fuel treatment from a friend who gave me a bottle to try. He said it works in his Cadillac Eldorado and uses it with unleaded fuel. I tried it in my Lexus GS300 with medium grade gas. It worked no pinging. Previously I had tried with a premium gas shortage in my area with a quarter tank premium and half tank migrated and you could tell engine did not like it. I would highly recommend I noticed more miles with same trip.

Little improvement in performance in terms of efficiency or power

Haven't t noticed any improvement

Don't see much of a diffence in gas mpg.

I can tell the gas mileage increase with the use of the Xtreme Green Fuel Max Plus +