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  #1  
Old 06-07-2003, 06:02 PM
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Marvel Mystery Oil

My mechanic said I should put a quart of Marvel Mystery Oil in the crankcase oil with my next change.. he said its excellent in the diesel engine and does wonders .. is he trying to sell me sanke oil treatment?

1990-1922 2.5 turbo diesel engines
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1994 S-350 6cyl Turbo Diesel 158k

1998 300d 6 cyl Turbo Diesel 143K

1993 2.5 124 Turbo-Diesel 236

1990 2.5 124 Turbo-Diesel 228k

1983 SL-500 EURO W/HEATED SEATS 40K

SOLD 1977 Jaguar XJ6 Coupe Antique Roadster 85K

SOLD 1993 2.6 6 cyl 190 E 150k

SOLD 1992 2.5 124 Turbo-Diesel 204k

RIP 1992 124 300 TD 265K OIL PUMP QUIT @ 85MPH
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  #2  
Old 06-07-2003, 06:48 PM
2.5 TURBO
 
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I would change and use Mobil Delvac, forget the Mystery Oil...
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  #3  
Old 06-07-2003, 07:03 PM
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Don;t know about diesel's. But I use Mystery Oil in my 94 E500 and so does run.exe (Scott), and we are both happy.
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  #4  
Old 06-07-2003, 07:09 PM
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Join Date: Sep 2001
Location: central Texas
Posts: 17,277
This stuff has great press and a cult following... I do not know about the claims of " top end lubrication"... never could understand it...
I use the Air tool Marvel oil for air tools...
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  #5  
Old 06-07-2003, 08:47 PM
rhgtara@localne
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I have a metalic rap in my engine and a Mercedes tech
recommended Marvel Mystery oil in the crankcase. He said it is
amazing how much varnish and shellac builds up. I put some in
and the noise seems to be a little softer. Haven't driven far yet.
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  #6  
Old 06-07-2003, 10:14 PM
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Join Date: Aug 2001
Location: Evansville, Indiana
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Better cure for noisy lifters in a 60x engine is to replace the two little o-rings on the center shaft of the oil filter cover. They are not it in new filter box for some reason, and when they get old and hard, they leak, reducing pressure in the lifter gallery. It leaks down overnight, so that the tappets are "flat" the next morning. Can take quite a while to pump up.

Marvel is a high detergent solvent mix, it will remove varnish and sludge, but you won't have any if you are either changing dino oil every 3000 miles or using synthetics. I strongly recommend one or the other -- both the old Chevy vans at work have more than 300000 miles on them, with no engine work! Oil is changed at Speedy Oiler every 3000 miles.

Peter
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  #7  
Old 06-08-2003, 02:08 PM
rhgtara@localne
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psfred: I agree with what you say however in my case due to
unusual circumstances I am only able to drive the car to the
store and back[about 1 to 2 miles] And this AM I noticed a
definite improvement in the metalic rap due to using Marvel
Mystery oil.
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  #8  
Old 06-08-2003, 03:46 PM
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Join Date: Jan 2000
Location: PA
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I used to use Marvel in a '55 (yes five five) Plymouth. It wouldn't run good without it.

Never tried it in my Diesels, they run good without it.

P E H
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  #9  
Old 06-08-2003, 04:36 PM
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Location: central Texas
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Well,, this does seem to add up... proper hydraulic lifter action can sure be affected by varnish build up... so if this is good at dissolving that then it would be felt in the seat of the pants....
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  #10  
Old 06-08-2003, 04:39 PM
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PEH, Did you use it in any '05 (yes oh five ) automobiles ? You were probably still driving them in '54 (yes five four) when you bought that new '55 (yes five five).
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  #11  
Old 06-08-2003, 08:52 PM
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Leather,

That's zero five. Don't know a ZERO (numerical character) from an OH (alphabetic character) ?

And the '55 Plymouth was 7 years old when I bought it, not new.

P E H
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  #12  
Old 06-08-2003, 09:10 PM
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TXBill,

I bought some new food last week, does that count?

P E H
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  #13  
Old 06-08-2003, 09:40 PM
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Join Date: Sep 2001
Location: central Texas
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I thought maybe you splurged just once in your life celebrating coaxing 57 years out of that other car.... What was I thinking ?
I should have used zeroh, that covers both of them.
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  #14  
Old 06-09-2003, 01:06 AM
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TXXBill.

How come you sold or got rid of all those MBs? I still have my first one.

Volvo substitute? I don't think its quailfied.

P E H
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  #15  
Old 06-09-2003, 01:09 AM
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Leather,

Your arithmetic escapes me: 57 years?
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