Gunk in the engine
Thread Starter
Melting Slicks
Joined: Apr 2005
Posts: 2,045
Likes: 4
From: Yorktown VA
NCM Sinkhole Donor
Gunk in the engine
Someone told me to put 1/2 a quart of transmission fluid (Dextron) in the oil and it will clean out all the oil gunk in the engine. Run for about a 1000 miles and then change out the oil.
Anyone know if this is a good idea?
Thanks.
Anyone know if this is a good idea?
Thanks.
Melting Slicks
Joined: Dec 2002
Posts: 2,390
Likes: 315
From: Belmont Michigan
Back in the '70s we used to add a quart of tranny fluid just prior to an oil change. Figured it helped to clean things out. We would just run it 20 minutes or so. Don't really know if it helped or not. I don't know about running it 1000 miles, though.
Rich
Rich
Pro
Joined: Aug 2002
Posts: 560
Likes: 0
From: The Valley of The Sun AZ
I've heard old timers using diesel fuel too. I would use something a little less drastic like the Mobil 1 Drive Clean oil or some Marvel Mystery oil. MMO is cheap and works well as a solvent/degunker
Thread Starter
Melting Slicks
Joined: Apr 2005
Posts: 2,045
Likes: 4
From: Yorktown VA
NCM Sinkhole Donor
Here's what the Auto Barn says about MMO:
"Marvel Mystery Oil can be added to gas or oil. It combats internal motor rust and corrosion, lubricates valves, piston rings, upper cylinder walls, and eliminates valve sticking. Keeps rings free and reduces piston and cylinder wear. Also keeps fuel pump and carburetor parts clean, eliminating the need for frequent adjusting. Marvel Mystery Oil retards formation of power dissipating motor deposits, such as gums, varnish, and sludge."
It costs $4.50 for a 32 oz bottle. ATF is about $1.50 a bottle. I guess I'll just use ATF unless someone has more info.
"Marvel Mystery Oil can be added to gas or oil. It combats internal motor rust and corrosion, lubricates valves, piston rings, upper cylinder walls, and eliminates valve sticking. Keeps rings free and reduces piston and cylinder wear. Also keeps fuel pump and carburetor parts clean, eliminating the need for frequent adjusting. Marvel Mystery Oil retards formation of power dissipating motor deposits, such as gums, varnish, and sludge."
It costs $4.50 for a 32 oz bottle. ATF is about $1.50 a bottle. I guess I'll just use ATF unless someone has more info.
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
use clean oil and change it regularly....why do you want to clean the sludge out and recirculate that crap through your oil system? leave it alone and change your oil frequently...
Race Director
Joined: Feb 2005
Posts: 16,100
Likes: 17
I've used Rislone for years. Add one quart of Rislone when quart low, run engine till warm,short drive,then change oil and filter.I do this about once a year.Believe these additives thin your engine oil,so I get it out after treatment.
Drifting
Joined: Oct 2004
Posts: 1,496
Likes: 1
From: Lafayette Louisiana
Originally Posted by Buzzardz_vette
Here's what the Auto Barn says about MMO:
"Marvel Mystery Oil can be added to gas or oil. It combats internal motor rust and corrosion, lubricates valves, piston rings, upper cylinder walls, and eliminates valve sticking. Keeps rings free and reduces piston and cylinder wear. Also keeps fuel pump and carburetor parts clean, eliminating the need for frequent adjusting. Marvel Mystery Oil retards formation of power dissipating motor deposits, such as gums, varnish, and sludge."
It costs $4.50 for a 32 oz bottle. ATF is about $1.50 a bottle. I guess I'll just use ATF unless someone has more info.
"Marvel Mystery Oil can be added to gas or oil. It combats internal motor rust and corrosion, lubricates valves, piston rings, upper cylinder walls, and eliminates valve sticking. Keeps rings free and reduces piston and cylinder wear. Also keeps fuel pump and carburetor parts clean, eliminating the need for frequent adjusting. Marvel Mystery Oil retards formation of power dissipating motor deposits, such as gums, varnish, and sludge."
It costs $4.50 for a 32 oz bottle. ATF is about $1.50 a bottle. I guess I'll just use ATF unless someone has more info.
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Melting Slicks
Joined: Apr 2004
Posts: 3,287
Likes: 7
From: n/a SC
I don't believe in adding snake oil that is unless you actually think there is tons of sludge in your engine or something......then go with something that has been proven like MMO.
Last edited by wildman378; May 5, 2005 at 08:21 PM.
Thread Starter
Melting Slicks
Joined: Apr 2005
Posts: 2,045
Likes: 4
From: Yorktown VA
NCM Sinkhole Donor
By the time I got the car, the sludge had already become a problem. All of the rockers and springs are covered to the point that you can't really make out any details. I hate to see what the rest of the engine looks like. I don't think regular oil changes will do the trick until after I get it cleaned up.
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Originally Posted by Buzzardz_vette
By the time I got the car, the sludge had already become a problem. All of the rockers and springs are covered to the point that you can't really make out any details. I hate to see what the rest of the engine looks like. I don't think regular oil changes will do the trick until after I get it cleaned up.
my concern still is stirring this crude up in mass and pushing it through the oil system....why not do a few 1000 mile only changes with a good quality low viscosity detergent oil
Thread Starter
Melting Slicks
Joined: Apr 2005
Posts: 2,045
Likes: 4
From: Yorktown VA
NCM Sinkhole Donor
Originally Posted by bobs77vet
my concern still is stirring this crude up in mass and pushing it through the oil system....why not do a few 1000 mile only changes with a good quality low viscosity detergent oil