Marvel Mystery Oil 50735 Classic & Ultimate Fuel & Motor Treatment

This set of Marvel Mystery oil classic & fuel and motor treatment is amazing. I have an older Lexus IS 250 that is known to have issues with carbon deposits. My car was sputtering and the check engine light was on. I had this issue previously and took it to Lexus... boy that was a mistake as they charged several hundred dollars to clear it up. They mentioned that the problem may come back and once it did I did a little research.At first I tried Sea Foam, which did help but did not clear it up all the way. Eventually I tried the Marvel's mystery oil based on others reviews and it finally cleared up the carbon buildup. I now religiously use the classic in the gas tank after each fill up (can also put some in the oil crankcase) and then add the Ultimate Fuel & Motor Treatment into the oil crankcase after an oil change. I no longer have an issue with carbon deposits.On top of everything else - the price is cheaper than most similar products.

I've used MMO for a long time in my gas. Almost every fill up for years. It just works really good. This is my first time trying the Ultimate Fuel and Motor Treatment. The car absolutely loves it in the gas. One tank has made it feel smoother and improved the acceleration. I'll be buying more of both of these products.

I like the smaller and improved bottle better and believe me, my old beater minivan got a new lease on life.No more stalling when i press the gas, runs better and saves gas from what i can tell within 2 weeks.Don't know how this thing can go in gas and oil but it does and it works.

Works well so far

My car isn’t burning any oil at all since I started adding this, and I drive a 2007 Scion tC. If you know anything about the 07-10 Scion tC then you know that’s a big deal haha. 136,000 miles and I will keep using this for sure! Mine didn’t have a huge issue yet, but I would usually have to top it off a bit every so often. I just went to check it before leaving for a trip and was surprised to find it still at the full mark after several weeks! I definitely feel like this will help prevent it from becoming a big problem.

I have always been a skeptic - but i have also had look with additives for my cars, considering I've always owned BMW, Mercedes and MINI. When i finally decided to give this a go, my BMW Wagon was night and day in terms of feel! I could feel the change in acceleration and the knocking from the engines age was heavily reduced. What sucks is i paid 10.99 for this a day ago and its now 7.99 lol! But it was worth it nonetheless. I will buy for my other 2 cars and i highly recommend for every one.

Marvel is the real deal. I used it in my old 1991 Toyota Camry and in my new 2000 Toyota Corolla. It's one of the few products I've noticed that works better than advertised and you notice the difference right away performance wise.

Great product overall I have use it for years on all my vehicles and it works really good to protect your engine.