engine and drivetrain (valve seals) Science behind MarvelMystery oil?

[SteveH]

In every post I read, C.D. reccomends using MarvelMystery oil to stop the smoking.

DRAIN THE OIL HOT:

refill with 1 qt MARVEL MYSTERY oil

and 3.5 qts 20w/50 oil and new oil filter

drive it for a nonstop trip 200 miles and drain

change oil and filter again and refill with 20W50

or 15w/50 MOBIL 1 and report your findings (sightings)

after another 100-200 miles of driving.

------------

Can I save money by adding the Marvel to my old oil, and changing it 200 miles later?

I'm assuming the Marvel softens/cleans the valve seals and other engine parts. Is this correct?

I think its worth a shot. Normally, it will only smoke if I close the throttle at 5000 RPM , but one day it smoked everytime I closed the throttle over 3500 RPM. It hasen't done that since.

I'm going to college in the fall, and will have another car for the hard highway driving, so I don't want to rebuild the head.

Thanks again

[_z_]

Not only is that Oil a Marvel but its also a Mystery

TRUTH IN ADVERTISING!!!

The only honest product on the shelf.

DO NOT QUESTION IT

So obviously I"ve got no idea, but I put some in my generator and it does keep the valves from building up carbon. Who fricking knows why.. its a marvel.. A MYSTERY!

[Rastadog]

car sits 6 months a year,no problems with pistons seizing in th k-pump. Lubes everything. Also add it to the gas in my 1969 IH garden tractor,which has a motor thats never beem apart. MMO rules

[mikem]

I don't see that happening. That's like 3-4 hours highway!

Is that a requirement for the benefit?

My '76 is a ~daily 'round town driver.

[SteveH]

especially after reading the other thread about Marvel Mystery Oil. Check out the other thread. It may answer some of your questions, especially about why it should be added before a highway trip. I believe you want the engine to get nice and hot.

Although, if it cleans as well as synthetic oil, I'd be worried about oil leaks.

[chrome68]

I use it for that at work non stop for many issues. we import, test, and rebuild Japanese longblocks. as the tester I run them on a bench with a natural gas carb and my own manifolds. into the cyls 50/50 with lacquer thinner (in a squirt bottle through plugs), I crank em over by hand and work it into the rings and valves, then I spin it over & spit out all kinds of carbon and sludge. put plugs in it and fire it up. wide open throttle 3 or 4 times snapping it shut. usually only takes one round, I've seen compression go from non running 30 all the way to a full 220 lbs in 6 minutes... when you take the plugs back out, the pistons are usually shiny & clean. it seems to almost disolve into oil even without mixing thinner into it.

I use it all day and it's still a mystery..

[S14SEAN]

This post blows my mind i will for sure try some marvel on my car and other engine that need help around.

[S14SEAN]

This post blows my mind i will for sure try some marvel on my car and other engine that need help around.