Thread: ATF in your Oil

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Originally Posted by DennyW

correct Glenn... When I worked at a GM dealer. the carbon removing liquid they used...boy, talk about smoke...half can through carb...then flood the engine with the other half to stall it, let sit, then start and clear it out. The directions were right on the can.

Also, SeaFoam is very good if used right...

I have used the old style ATF (type "A") to clean engines back in the 60's when a high milage engine was +60,000 and learned to be cautious on the high mileaged engines. If you run it too long, you ruin it. I have also (old school) used diesel in the oil to clean it out and had sucess with that. I have also used the water to clean the carbon from the pistons and clinders with great luck. I have never run one more than 2 minutes though.
Wish I had known about the cleaner the dealers used. I would have tried it.
A great tip from the past though.