| Re: [GMCnet] Trans question [message #117643] |
Sat, 05 March 2011 09:59 |
Gary Casey
Messages: 448
Registered: September 2009
Karma:
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Senior Member |
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I'll certainly go along with Rob on this one. I can't come up with any logic at
all that encourages one to put the old oil back into a transmission after
draining it. There will still be a few quarts left in the converter in any
event (unless the converter has a drain plug and virtually none do). On the
other hand, if the oil is clear and red there is probably nothing really bad
that will happen. But why take the chance of introducing contamination? I
would just put in new oil. Nothing bad could possibly happen.
Gary Casey
Robert Mueller wrote on Fri, 04 March 2011 23:04
> Randy,
>
> I have never heard of anyone draining fluid out of any transmission and then
> putting half the old oil back in. I don't understand the logic.
I don't often resort to logic, at least right away, but after talking to a
number of transmission old-timers, they agree that if you don't know how old the
fluid is (and I didn't- no records came with my coach) you shouldn't change all
the fluid and doing so seemed to all but guarantee tranny problems.
--
Randy
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