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Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: Corvair 65 ()
Date: August 22, 2009 04:11AM

Here is a question I posted on another subject which never got much replies or explanations too.


On another forum I found talking about this subject.. Heres the link

[www.bobistheoilguy.com]


Now for my question.

My 65' hasnt been started in I know 2 years (but maybe much longer). From the other forum it stated the Marvel Mystery Oil is a harsher product compaired to the Auto-RX over time. In my situation would it be best to use either of these products?

I pulled the oil pan to see what sludge collection was present. Considering how long it has sat. There was a light amount present. Using my finger tip I easily wiped off the oil to see the crome of the pan. Not much build up at all, didnt take me long to clean the pan up. Should I initially use any product in the oil at start up since its been sitting so long, or is there a recommended product i should consider using.

Im getting the last few pieces this weekend to finish up the motor in preperations to start it in the next week.

Any knowledge is appreciated

What do you guys think?


"edit.. the original question was on this topic"
[corvaircenter.com]



Edited 2 time(s). Last edit at 08/22/2009 04:19AM by Corvair 65.

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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: MattNall ()
Date: August 22, 2009 04:12AM

Price!!

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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: Corvair 65 ()
Date: August 22, 2009 04:23AM

Other then price.


Is there a difference among the 3?
They all claim to do the same thing in cleaning sludge in oil ect. Some might do the job but be harmful to an engine that has been sitting like mine for so long. Im just trying to get an idea if or what i should use on the initial start up and or the first 500-1k miles

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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: MattNall ()
Date: August 22, 2009 04:49AM

I wouldn't be afraid of any of them...

But I use Risolene... does the same thing..

And R1 says AutoRX is the best.... I'd go with what he says..

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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: richard1 ()
Date: August 22, 2009 12:22PM

The thread you to covers it in a nutshell. I've posted ingredients for those products here (search). (obviously either of those is better than straight diesel fuel as used by many here, or laundry detergent as used by others).

I would not use seafoam, MMO or other products like those for quick results, as they can dislodge layers too quickly.


Remember that these layers of crud that can come out of the ducts can very easily block a passage somewhere, particularly dangerous in the bearings. They can also clog or avoid sealing of the lifters. The AutoRx treatment is the slower more sure way of getting the job done right.

I'd put a CI-4 10W-30 in it, run it for a few days, then change it out to another 10W-30 CI-4 with AutoRx.

Restoration in Bolivia
Richard's Mini Pickup
Richard's Corvair
Richard's Renault Dauphine

Selection of the Right Motor Oil for the Corvair
Selection of the right transmission oil for the corvair
How to polish and restore stainless and aluminum trim

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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: TIBCO ()
Date: August 22, 2009 12:54PM

I guess the next question is where to get Auto RX. I know that autozone carries both Seafoam and MMO. The website for Auto RX has an online ordering system which is essentially an email request. Do any of the auto specialty stores carry it on the shelf?

Cliff Tibbitts
Lexington, KY
CORSA, CKCE
66 Monza, 140/4sp

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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: 4carbcorvair ()
Date: August 22, 2009 01:02PM

Cliff, I have never seen it around here either.

--------------------------------
Ronnie
Southern Maine.
[www.dirigocorvairs.com]
66 Corsa Convertible, 140, 4sp.




It doesn't leak, it's marking it's territory.

A mirror is a reflection of the miles travelled.

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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: richard1 ()
Date: August 22, 2009 01:09PM


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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: MonzaDave ()
Date: August 22, 2009 04:33PM

I bought my Auto RX online from their website.

Dave Keillor
Rochester, MN

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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: richard1 ()
Date: August 22, 2009 05:02PM

Ingredients (from posts in May):

MSDS Marvel Mystery Oil

BENZENE, 1,2-DICHLORO-
MINERAL SPIRITS
NAPTHENIC HYDROCARBONS

But for $3 what can you expect.

Here is another that shows it only has a 10 cSt viscosity, so it is thinning your oil, but 25% volatile and will boil at the temperatures of certain points in the engine.
----------------------
Seafoam

1. "Pale oil" (napthenic which has more solvency than a normal motor oil, but a very low viscosity index. If used extensively/regularly it will dissolve oil seals)
2. "Naptha"
3. "Isopropyl Alcohol"

Personally I would rather put Diester Group V high solvent oils in my crankcase that will not harm anything than a cheap mixture of napthenic oil and alcohol. The formulation of products like AutoRx include the diesters as well as dispersants and ZDDP to keep things balanced.

Restoration in Bolivia
Richard's Mini Pickup
Richard's Corvair
Richard's Renault Dauphine

Selection of the Right Motor Oil for the Corvair
Selection of the right transmission oil for the corvair
How to polish and restore stainless and aluminum trim

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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: nnsquared ()
Date: August 22, 2009 07:28PM

Just a reminder, there is a whole writeup or post here about first time startup of engines that have been sitting for a long time. Oil into cylinders, hand crank, no plugs, pre-lube with special distributor shaft to drive the pump, stuff like that. Good to check that out before actual explosions by spark in the chambers.

Regards,
Kerwin,
Valley Forge, PA
65 Monza 110 PG, Stinger wannabe SW 001


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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: perrya ()
Date: August 22, 2009 07:57PM

I have AutoRx in the 66 corsa, which sat for 15 yrs. Available online for $26. not sure how well it working, though.

I figure is Ray sedman said use Auto RX, he would know.

Perry

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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: cnicol ()
Date: August 22, 2009 11:47PM

I wouldn't worry too much about residue from oil sitting in the engine for only two years. Like Kerwin said, I'd worry about getting oil where it belongs before turning the engine over. Oil the cylinders, pull the valve covers and oil the rocker arms and valve guides. Pull the distributor and pre-lube the oil system with a drill motor. That's where I'd put my emphasis. Oil sitting in an engine for a couple of years shouldn't cause any problems.

Craig N. Coeur d'Alene ID.
66 Black Monza 4dr, 4.2L V8 49k
66 Red Monza 2dr 140/4 EFI 60k
61 Seamist Jade Rampside 140 PG
65 Cypress Green Monza 140/4 4dr
65 White 4-dr 110/AC/PG (parts)
64 GB -CrUnChEd (donor)


20 Tons of parts in boxes

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Re: Marvel Mystery Oil vs. Auto RX vs. Seafoam
Posted by: Corvair 65 ()
Date: August 23, 2009 03:28AM

cnicol Wrote:
-------------------------------------------------------
> I'd worry about getting oil where it
> belongs before turning the engine over. Oil the
> cylinders, pull the valve covers and oil the
> rocker arms and valve guides. Pull the distributor
> and pre-lube the oil system with a drill motor.
.


I got a distributor shaft today which I'm going to put on my drill and run for 10-15 minutes to pre-lube everything before i attempt anything. Wrapping up the finishing touches and if all goes well.... I'll try to crank it over tomarrow

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