Transmission

[J. Ingram]

I own a 2004 winnebago sightseer with the allison transmission. I bought it with 8,000 miles on it. It now has 17,000 miles. How often do you change fluid and filters?

[Skip426]

Makes a difference, if your towing or not. Recomendations should be in your Workhorse Chassis manual. Personally 20k/2years, check fluid color after every trip.

[JonBrazel]

The external spin on filter needs to be changed at 5k miles so unless previous owner did this, I would change it.

[Mr_D]

OP, what fluid does it have? If TranSynd then it's a LOT longer than Dexron.

Here's a link to the maintenance info.

[xctraveler]

That should be the Allison 1000 (WorkHorse Chassis). Same as I have. According to the manual I received change Tranny fluid at 50,000 miles. I converted to Transynd at that time ('04 they did not come from the factory with Transynd - I've been told).

If you have diesel, ignore this message.

[radams]

Quote:

Originally Posted by Mr_D OP, what fluid does it have? If TranSynd then it's a LOT longer than Dexron. Here's a link to the maintenance info.

Note on the link that Mr_D posted that in addition to the mileage recommendation there is also a time recommendation. Like engine oil you may run out of time before you run out of miles. That's what I bumped up against on mine so I changed it.

[DriVer]

Here are the change intervals for TranSynd:

• 150,000 miles
• 4,000 Hours
• 48 months

One must change out the original load of Dexron twice in order to have a good concentratiuon of synthetic fluid. The control filter alos needs to be changed at the same time.