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sandman
Dodge Dakota
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9/22/2002
22:29:25
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 Subject: Engine Flush Systems
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Message:
GM has determined that some of the solutions used in these engine flushing systems can dammage seals in the engine. They has issud a TSB against these types of flush's. The can cause hardening and cracking in some seals. They did not advise which solutions were to blame rather they advised against any of them. Some solutions were also found to be corrsive to the bearings in the bottom end. I just thought I would pass this along to the group. I figure thaqt the industry shares alot of material for common items like bearings and seal due to the shareing of suppliers so it should still be valid for our Dodge Trucks.
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AmsoilSponsor
DakotaEnthusiast
9/23/2002
13:38:52
|  RE: Engine Flush Systems
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Sandman,
Your knowledge, expertise, and advice is greatly appreciated.
As you know Amsoil has an Engine Flush, but I am posting here to PERHAPS offer you and GM owners an alternative. I have never used this product, but know many guys that have in older engines.
There is one product that might be considered no matter what oil or engine used (even though some Amsoil Clients have used it with great success, and Auto-Rx's website states you should use it with dino). The product name is Auto-Rx. It is vegetable based and I've been told that it does not affect chemistry or viscosity at all.
It is NOT an Additive but a engine cleaner that (I've been told) really works. It has a residual effect because it cleans the rings and valve seats and valve guide seals so well. Lasts 10000 miles or so in a gasoline engine.
My question, would you be concerned about seals ... I've been told this stuff will simply clean the abrasive deposits that keep the seal from functioning normally. I've also talked to guys that have run tests and they say it doesn't damage anything.
I know another guy that told me he used it in an older engine with a noticable oil pan gasket leak and it almost stopped the leakage after 500 miles. He also stated that it also helped his noisy lifters and cleaned off baked on varnish.
Again, this is not a recommendation as I'm just looking for your .02 , and a "safe" alternative for GM owners.
You can check out the website at www.auto-rx.com .
Steven Roark , Amsoil Dealer , Proud Sponsor of DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants and Truck Care Products
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sandman
Dodge Dakota
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9/23/2002
15:23:17
|  RE: Engine Flush Systems
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The GM TSB did not mention any of the flush's added to the oil prior to changeing. They were refereing to the one's that totaly evacuate the crank case then fill the system with pressurized solvents and circulate through the entire oiling system then evacuate the crank case again. I am sure I did a poor job of describeing the process. It is an autmated flushing process that uses special equipment. I am sure that the crank case style flush's of yester-year while not great for an engine are not what the TSB was refering to. Most of the early style flush's were justa quart of Koresine in a can. I have to admit I am not a big fan of flushing an engine even though it does have it's place. In Germany we used to use a flushing oil. You would pick up a gallon of flushing oil and add it to the engines crank case in place of it's regular oil. You would put it in drive around for a week around town then drain and refil. Motul made the product we used. It was like a 0W10 oil with alot of detergents and anti-wear additives. It was designed just for flushing.
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