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Do the flush... it couldn't be any easier.
I've done the flush on two bricks with great success. But on the third, I encountered something new:
- Ran the usual 12 quarts through, and it was still pumping out dirty fluid.
- Ran another 4 quarts through (16 total) and it seemed fine.
- Re-checked the fluid level several days later, and realized I had over-filled by about three-quarters of a quart. No big deal, so I commence to let the tranny "pump out" the excess fluid through the return line (just like you would with a complete flush). To my surprise, the three-quarters of a quart that I removed looked almost as bad as the original stuff.
My conclusion: that there was a heavy film of sentiment in the pan that was picked up by the fresh fluid. I think I should have dropped the pan for a good cleaning on this car. The car is a '93 945 N/A w/ 130K miles.
I can tell you, when I pulled the pan on my Mercedes with 130K miles I was shocked to find a 1/8" film of metallic, greasy gunk lining the whole bottom of the pan. It wiped right out with a rag, but it's stunning to find that much crap in a system that's supposed to be kept very clean.
Jeff Pierce
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'93 945 Turbo ( one kickass family car ! ) 197K miles, '92 Mercedes 190E (my daily driver) 170K miles, '85 Jeep CJ-7 w/ Fisher plow 225K miles, ’95 Lawn Chief
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