change to Synthetic oil

[charles botts]

I want to change over to using Synthetic oil and the question is how much is
needed for the transmission. Any suggestions would be appreciated

The book list 4 qts for a drain/refill of the transmission and 12 qts for a
complete overhaul. Since the change will be done at a RV service center, how
much oil should I purchase for them?

The final drive list 4 pts of EP 80W-90 so that's straight forward. The
Cinnabar gears were changed 25K ago.

Chuck

 

[ron & gina]

Chuck,

I just changed my tranny fluid/filter for the second time since I got the
coach, On the first time I just dropped the pan cleaned and reinstalled IIRC
it took about 4-5qts., When I changed to the Ragusa pan I drained pan and
let drain for about 4 days before buttoning everything up, I needed about
6-8qts. I also am switching to sin oil, But since I got blend oil alittle
cheaper, and I now have a pan drain plug. Thought I'd use the blend first,
take care of some leaks that I have then switch to full sin oil On my next
change.

Ron&Gina
73 Pumpkin-Rose
Ft. Mohave, AZ.

- ----- Original Message -----
From: "Charles Botts"
To: "GMC, Digest"
Sent: Wednesday, February 23, 2000 3:34 PM
Subject: GMC: change to Synthetic oil

> I want to change over to using Synthetic oil and the question is how much
is
> needed for the transmission. Any suggestions would be appreciated
>
> The book list 4 qts for a drain/refill of the transmission and 12 qts for
a
> complete overhaul. Since the change will be done at a RV service center,
how
> much oil should I purchase for them?
>
> The final drive list 4 pts of EP 80W-90 so that's straight forward. The
> Cinnabar gears were changed 25K ago.
>
> Chuck
>