Reviews of MAREL parts For Business

Marvel mystery oil. Improved mpg and noticeably runs smoother.

Not sure on the Lucas. Looks little past that. Only marvel mystery oil can help you here. That stiff is magic...

I have a 1965 F100. It has been in the family since it rolled off the showroom floor. My wife's grandfather installed a Marvel Mystery Oil inverse oiler. It still works. The truck has 93000 miles and runs great.

Can support the 1/4 cup of MMO in the engine oil. Had a Triton with a tick and adding the MMO made the damn thing run as smooth as a sewing machine

I had really really bad lifter tick after I fixed the timing on my NA(you can see on my latest post) I put marvel mystery oil in it about 6/8th of a quart after dumping a quart of my oil which was at full before, let it idle for 10 minutes or so by that time the tick was almost fully gone took it out for a 3 minute drive down the street(I have no working radiator fans) went through all gears tick is completely gone only a little during start ups I hear that that’s normal, safe to say I am ready to change my oil back to normal.

I swapped a motor into my golf yesterday fired it this motor hasn't ran in like 4 years. Right away the valves were clack a lacking like crazy even after running for 15 minutes and pumping up there was still one or two of them were quite loud. Added a half quart of mmo amazing no more noise.

My 89 cabby has over 400 k on it I use some of this stuff every couple of months, a bit in the tank, a bit in the crankcase. Works wonders on the lifter tick helps tired hydraulic lifters, nearly eliminates it.

Marvel mystery oil for a few cycles should help with sludge build up. Just be careful it can be hard on seals.

Marvel Mystery Oil, hope, prayers that the mystery comes through. Otherwise seafoam.

I have used that Marvelous Mystery Oil crap twice on 2 different cars - within 10 miles, BOTH blew the headgaskets.