Marvel Mystery Oil32oz. (Pack 2)

I have used this for years in airplanes and cars. If you want a clean, long lasting engine, use some in your crankcase oil and in your gas tank per directions. Everything will stay nice. Smooth running. Better mileage. Better power. This oil was developed by the Marvel aircraft carburetor makers 70+ years ago. Airplane people know it's solid benefits.

Awesome Quality great deal

Works well for intended use. AAA+++++++++

Marvel Mystery Oil Diesel Treatment is like a magic potion for your diesel engine, and it may just have you singing its praises all the way to the gas station! Designed to enhance performance, this treatment works wonders in improving fuel efficiency, potentially increasing your gas mileage like a turbocharged fairy godmother. Just pour it in, and let the magic happen as it cleans and lubricates your fuel system, reducing carbon build-up and ensuring your engine runs smoother than ever.Users often report feeling a noticeable difference in their vehicle's performance, with some even claiming to have achieved higher miles per gallon. It’s almost like finding an extra set of wheels in your trunk—unexpected but definitely welcomed! Plus, it’s suitable for all types of diesel engines, making it a versatile addition to any mechanic's toolkit or a weekend warrior’s garage. So, if you're looking to stretch your fuel dollar and keep your engine happy, give Marvel Mystery Oil Diesel Treatment a try. Who knew that adding a little mystery to your fuel could lead to such a fantastic transformation? Buckle up, because better gas mileage is just a bottle away!

I love this stuff. i add it to every fuel fill up. I do believe it increases engine life.

Got the fast. Just what I wanted!

I've been working on restoring a 1984 Honda spree from death, and it has been sitting with a half full tank for sometime so I needed some way to clear my lines and see if the motor was still worth the time. Luckily with just a few splashes and a little cleaning I got the motor to start idling the next day.

Increases performance and milage