Marvel Mystery Oil Oil Additive, 1Gal, Red, Transparent

Not much to say, product was exactly what I ordered and expected. Relatively quick shipping too.

Marvel Mystery is the most highly refined oil on the planet! I'm 72yr old motorhead and I have been beating the crap out of cars since I was 14. Back in the 70ties an old mechanic told me too always put Marvel in every tank of gas. That's how long I used it. It boosts the compression, oils your engine from the top, protects on cold startups, and it dissolves all the carbon. Also, before an oil change, I put a pint in the oil and drive it a couple of times and then I drain out the oil over night, pull all the spark plugs and dump about a shot in each hole and in the carburetor, this cleans the piston rings as it seeps through them over nigh, soak the plug tips in Marvel overnight. Before replacing the plugs add new oil, cover the holes with a rag and turn it over a couple of times to make sure the cylinders are empty. Start it up check for leaks and take it out and drive it hard, it will smoke till the marvel burns off. To add; In the 70ies a service station in my town advertised the added a % of Marvel to their gas.

Highly recommend for oil and gas, definitely a 4 mile per gallon addition using this product.

Always a great product - the price was great too

This stuff has been around forever, and for good reason. Good for top-end lubrication and will actually quiet down noisy valves. I replace 1 quart of oil with MMO at every oil change. Why does it work so well? Beats me, it's a mystery.

Exactly what I had expected.

My 2002 VW Eurovan now runs so smoothly that some times, I can't believe I'm driving a quarter century old car. Also, my wife's 2014 Subaru that used to burn a quart of oil every 3 months is now burning hardly any oil at all. I think this stuff is the real deal. I'm sold on it.

Arrived on time and undamaged. Wished I could get four individual qts. for close to the same price per gallon. So individual qts. are much more expensive per gallon.