Transmission

Is it possible for engine oil mix with transmission fluid ?
If so how to check it ?
The fluid is getting foamy after diving for longer time at higher speeds ,
and transmission gears are slipping.
I had the symptoms before , after changing ( last summer ) trans. filter and
fluid everything was fine for 6 months .

Thanks
Chuck
Plymouth Acclaim 1992 , 3L , 3speed electronic with overdrive.

 

I'm not familiar with the Acclaim, but many cars circulate tranny fluid
thru a heat exchanger in the radiator. If a leak develops in the heat
exchanger, then coolant (water and antifreeze) gets in your tranny fluid
and vice versa. Maybe that's what is happening?

Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
address with the letter 'x')

 

I can't imagine any way it could. It might be possible to get
antifreeze mixed in if there was a problem with the transmission cooler
(I think the Acclaim had a oil to coolant type cooler - but I haven't
had mine for many years so my memory may be faulty here), but I can't
think of any place where the tranny fluid and engine oil get close together.

Matt