Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post

Montana Sky · 01-11-2006, 10:43 PM

I am wondering how many of you folks who have the Duramax diesel and Allison transmission are running synthetic oil and synthetic transmission fluid in your rigs? My tranny will be due here in the next few months for its 50,000 mile fluid change and am thinking of switching over to synthetic. I run my oil changes every 3,000 miles,(or as close to) but am wondering if I would be better off running synthetic oil to promote longer engine life. I would like to get 150,000 - 200,000 miles out of this truck.

01-11-2006, 10:43 PM	#1
Montana Sky Montana Master Join Date: Jan 2004 Location: Down the Road Posts: 5,627 M.O.C. #889	Duramax and Allison fluids? I am wondering how many of you folks who have the Duramax diesel and Allison transmission are running synthetic oil and synthetic transmission fluid in your rigs? My tranny will be due here in the next few months for its 50,000 mile fluid change and am thinking of switching over to synthetic. I run my oil changes every 3,000 miles,(or as close to) but am wondering if I would be better off running synthetic oil to promote longer engine life. I would like to get 150,000 - 200,000 miles out of this truck.