automatic transmission flush
I'm due the 90,000 service on my 2011 F350 diesel. The dealer is recommending a transmission flush. Is this worth it, or are they just trying to make a boat payment?
Forum Discussion
At least with GM they recommend against the flush as it can damage the seals in the transmission.
There are also different change intervals for ATF depending upon whether it is the TES 389 that the dealer probably uses, or TES 295.
With my truck the TES 389 needs to be changed every 50,000 miles or every 24 months whichever comes sooner. With TES 295 ATF should be changed every 150,000 miles or 48 months, whichever comes first.
The change interval is reduced with heavy use as with towing.
There are also different change intervals for ATF depending upon whether it is the TES 389 that the dealer probably uses, or TES 295.
With my truck the TES 389 needs to be changed every 50,000 miles or every 24 months whichever comes sooner. With TES 295 ATF should be changed every 150,000 miles or 48 months, whichever comes first.
The change interval is reduced with heavy use as with towing.
