This is for the first generation S80 cars that use the GM 4T65E automatic transmission.
Volvo says that the fluid in these transmissions is “lifetime.” What does that mean? I think it means just long enough to get out of warranty so that it’s not their problem anymore. These transmissions fail at a very high rate, and I think that not changing the fluid may have something to do with it. I believe that a change interval of about 30,000 miles is reasonable. You need to get that old used-up fluid and shift-clutch gunk out of there and get some fresh fluid in.
Tools and supplies you will need:
- Jack and jackstands.
- 12mm socket and ratchet.
- 10mm socket and ratchet.
- New filter.
- 7 quarts of Dexron III or VI ATF.
- Drain pan.
- Disc brake cleaner.
- Paper towels or rags.
I noticed my transmission fluid is sort of brown in color. Normally I’d think it should be pink/red…right?
Other than the color looking off, another reason I want to change the fluid is that the transmission tends to take a second or two to slip into first gear when I first start it up cold. After it warms up and I go from Park to Drive it does fine. Never seems to have this issue going into Reverse tho…should I be concerned?
The other thing I notice about the transmission is that when I accelerate quicker than normal, the shift from 1st to 2nd is pretty hard. Hard enough to get a decent chirp out of the tires (which are brand new). Concern there too?
Anyway, thanks for any insight you or anyone else here on the forums can give me regarding the transmission.”
S80 1G 6Cyl Auto Transmission Fluid & Filter Change How-To
Last Updated on March 14, 2021
