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Old Feb 15th, 2020, 00:15   #3
Kev0607
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Originally Posted by adrian198 View Post
Hello all,

my 2005 XC90 with the Aisin AW55-50 5-speed ATF has covered about 396000 KM (248.000 miles) and I recently checked the ATF fluid dipstick...

The fluid was black and it smelled like ass and Im sure the oil hasnt been changed in a long time, maybe 300.000 km. Should I maybe change it? I have read stories on other forums on how doing a flush would cause the transmission to fail, so im a bit worried...



Maybe do a "soft" flush? Meaning opening the drain plug, put some new oil in, and then after a while do the same procedure again?

cheers, Adrian
The 'drain & fill' method is popular & many opt for that option, as the gibbons method requires removing the line to the transmission oil cooler etc. The gibbons method does do a complete flush, but its a trickier job.

With that mileage & the description you gave of the smell & colour of the transmission fluid, definitely consider changing it as soon as.
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Last edited by Kev0607; Feb 15th, 2020 at 00:19.
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