Trans fluid

[TrekPR]

I've got a tranny leak that appears to be from the top of the trans. We are not able to find Allison's trans fluid and have used what I carry. NAPA has sold me some Valvoline Dexron-VI full synthetic, anyone see any problems using this? I really need to use something until I can find the correct fluid.

[Sky_Boss]

Can you provide the year, make and model of your RV?

[TrekPR]

Sorry thought that was in the signature. It's 2006, Allison 1000, 6 speed. On taking another look I think the only thing that makes sense is the pan gasket. The top appears clean and dry and the cooling lines look good. We are headed north through Oregon and Washington so we will make a stop at Brazel's. Still wondering about the fluid. Thanks

[DriVer]

Originally Posted by TrekPR

Still wondering about the fluid. Thanks

About Dexron VI;

(1) TES 228 (C4 type) fluids are no longer approved for use in Commercial OnHighway transmission products and have been removed from the Allison Approved NonTES 295 and NonTES 468 fluids list.

(2) DEXRON ®III and DEXRON®VI fluids are no longer approved for use in Commercial OnHighway transmission products and have been removed from the Allison Approved NonTES 295 or NonTES 468 fluids list.

It would be a good thing to find something other than Dexron VI. In an emergency, you can use Dexron III but you will contaminate the load of Transynd that you have aboard.

Look for an Allison dealer, Chevrolet or GMC dealership. They will have Transynd. I would not use Dex VI.

[Mr_D]

Last time I bought TranSynd only Allison shops carried it. It's made by Castrol and their distributors didn't even have it.

[mhudson]

Shell DONAX TX HD meets TES-295 and is Allison approved.

[DriVer]

Originally Posted by Mr_D

Last time I bought TranSynd only Allison shops carried it. It's made by Castrol and their distributors didn't even have it.

Palmetto Chevrolet here in town has Transynd "because" they sell Duramax powered 2500HD pickup trucks with Allison transmissions. So does our GMC dealer. 2nd option my Workhorse Service Center carries Transynd but they are 15 miles away. The Allison shop is a fur piece from here out in Florence I believe.

Oemy has Transynd ... send him a note and he'll rush some out to you.

[Full-Timers]

ORiley’s carries BP synthetic which is Allison approved.

[TrekPR]

Thanks to mhudsom and full timer I can now look for Shell stations and O'Rilley's. There is and O'Rilley's close but they did not have the BP.

Driver the level is okay for now but I will pick up some Dexron III in the morning just in case. Not too worried about contaminating as it will have to be serviced when the pan is dropped, just don't want to blow it up. I'm in Fort Bragg Ca and there isn't much here.

[Mr_D]

Originally Posted by DriVer

Palmetto Chevrolet here in town has Transynd "because" they sell Duramax powered 2500HD pickup trucks with Allison transmissions. So does our GMC dealer. 2nd option my Workhorse Service Center carries Transynd but they are 15 miles away. The Allison shop is a fur piece from here out in Florence I believe.

Oemy has Transynd ... send him a note and he'll rush some out to you.

That's good to know, now we can comparison shop!!

[DriVer]

Originally Posted by TrekPR

Driver the level is okay for now but I will pick up some Dexron III in the morning just in case. Not too worried about contaminating as it will have to be serviced when the pan is dropped, just don't want to blow it up. I'm in Fort Bragg Ca and there isn't much here.

.... Ahmmm! ... and exactly why do you want to drop the pan? There is "nothing serviceable" inside the pan of an Allison automatic transmission.

[DriVer]

Originally Posted by Mr_D

That's good to know, now we can comparison shop!!

If I had a quart or more of Transynd in hand ... that would be the end on my shopping! I've paid various prices but I don't usually give myself a lot of shopping time. Last time I bought Transynd directly, it was from the Allison regional rep. while at the FMCA Rally in Madison, WI. "A Transynd in hand is better than 2 in the bush."

[TrekPR]

I don't have a lot of knowledge but I try to muddle through. I'm not real sure of where the trans fluid is coming from but as stated earlier I think it might be a bad pan gasket. Assuming that is the case I believe the pan would have to be dropped to change out the gasket.

I'm now at a location where there is a Chevrolet dealership and I will try to get the proper fluid in the morning. If not successful I have found a Allison dealer on our route. My thanks to everyone for your input it has all been very helpful.

[DriVer]

Originally Posted by TrekPR

I don't have a lot of knowledge but I try to muddle through. I'm not real sure of where the trans fluid is coming from but as stated earlier I think it might be a bad pan gasket.

Here's something for you to consider. The pan gasket on the Allison transmission is re-usable.