Marvel Mystery Oil Original Motor Treatment, 128 oz.

Works like it should

Been using this stuff since 1980’s works in fuel, and as an added benefit to engine oil. I have noticed performance improvement in both operation and fuel efficiency in several of my vehicle. Keep this on hand and add some to my fuel on a regular basis.

I use this product as a oil & gas additive for years keeps oil from breaking down & keeps carburetor clean which is beneficial during the winter on my lawn mowers & all of my saws works well to protect from the damage that ethanol does.

Best product on the market

I've even used it to soften old hard leather! It's a great lubricant that has been around for years.

Follow the instructions and your car will be running more efficiently! Thank you Marvel! It's cheaper to buy the gallon in the long run.

I purchased an older car that had a ticking - maybe a slight valve sticking problem. I put a small amount of Marvel Mystery Oil in the gas tank and also replaced half a quart of oil while changing oil. One day while on the expressway I changed lanes and all of a sudden this other car changed lanes too. In an effort to get out of the way I floored it. I looked in the rearview mirror and their was this cloud of smoke behind me. I mean huge dark cloud as I raced away. It was amazing, at first a litle scary then I realized my engine needed this. A good blowout. My motor is so quiet and idles so smooth that I hear the cars engine next to me in traffic but not mine. I actually thought on one occasion the engine had stopped but i blipped the gas and yes it was running. I will continue to use this product for the life of my car.

I have been using this in my tank for a while now. I think it really does help my 30 year old motor to perform a lot better. I have one complaint about the one gallon size. It has no markings on the bottle, so you either have to guess the amount you are pouring in, or you have to measure it into another container first to be sure you are using the correct amount. I took off one star because of this. As I understand it, you are supposed to use four ounces of the Marvel to every ten gallons of petrol. I would not hesitate to recommend this to anyone, but I would say do not buy it in the one gallon size unless you want to hassle with measuring it out first.

Ya lo habia utilizado, y si...si funciona, claro que debes hacerlo en varios cambios de aceite y saldran los resultados, si estaba humeando..lo deja de hacer asi de facil..