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

Great value, fast shipping

This oil is new for me. Building a 1928 Ford Model A and used it to fog the engine. Highly recommended by Model A enthusiasts.

Purchased this from Amazon,and because there so big, why would you have to price shop. Do yourself a favor, and Buy it from WALMART- Its half the cost, same product. Price being addressed first, now thats done, the stuff works for me. Ive been using it in my 2004 Tacoma and my 2007 Acura. I do run a higher concentration than called for, but its because I gradually added more at every tank full until I found optimal return on investment. Meaning, Most MPG for least amount of product. I add about 25 oz per tank Fill... And I get anywhere from 2 to 3.3 MPG increase. And I get that same result range in both vehicles. For a few tank fills, I actually added 30oz, and the fuel increase was the same as 25oz. SO I add 25oz now. Dollar cost average, It is cheaper for me to add this to the fuel and gain additional miles, it is cheaper than the extra fuel at a lower MPG.My Testing was done over an extended period of time... a few Months....., and probably 5 gallons of MMO was used during my test. I consistently used the same exact gas station near my home, Same station, same 93 octane, also driving to the same job, commute on same roads, and the same 120 miles per day. The product produced positive results for me.Ive tried sea foam, and about 6 other varieties of engine additive, cleaner, and Marvel Mystery Oil is the one that produced the best results. The other brands did not even produce a positive result on any consistent basis.

Worked as expected

I've always been a fan of buying stuff I can pour in my gas tank that improves performance. But it seems like no matter what the reviews say, it's hard to actually discern a difference when you're behind the wheel. NOT WITH THIS STUFF. I drive a Jeep Wrangler Unlimited with a Mopar Air Intake. When I add this stuff to the gas I can hear it rumble like nobody's business and I can feel the added power when I'm driving-- with this stuff in the tank I don't have to downshift when I'm going up hill. It's quite astounding. I love it so much that I sent a gallon to my son for his birthday. I've been adding it to my lawnmower, weed eater, blower, generator... everything that takes gas. This stuff is worth every penny. I'm a customer for LIFE!

BEST PRODUCT I EVER USED, KEEPS MY CAR RUNNING SMOTH, I ALSO PLACE THIS IN MY GARBAGE DISPOSAL , KEEPS THE BEARING LUBRICATED.

I deploy mystery oil in several different applications across my fleet. It's the 1st product to use on an engine that hasn't run in yrs, I put a shot in ea cylinder. When my 01 Nissan is running rough, I put a shot in the fuel tank. I use it in my oil to reduce chatter and lubricate the top end of my older engines. Good stuff !

I mixed this product with the gasoline in my 15 year old riding mower, and it runs like it did when it was new! I also mixed it with the gasoline in my leaf blower, and it runs much better as well. Very happy with Marvel Mystery Oil so far.