Dexron III dino oil is factory fill. Any Dexron III rated fluid is OK for the Allison. Only TES-295 rated fluids, (synthetic Dexron III such as Transynd or Amsoil), are rated for extended drain intervals.
You need to change the external filter at the initial 5000 mile mark per Allison recommendation for the 1000 series transmissions.
Allison or GM cannot say you have to use a certain brand of oil, Transynd or whatever, to maintain your warranty. Just as long as it's Dexron III is all that matters.
2001 Chevy 2500HD LS 8.1 Allison w/deep pan Ext. Cab SB 4x4 3.73\'s w/G80 Rhino Liner Westin Bars Lucerix Mirrors Bilstein Shocks Amsoil Synthetic Throughout Built 5/11/2001 Purchased off lot 11/10/2001--2002 Jayco Eagle 281RLS Reese 16k Slider Tekonsha Prodigy 32yr. GM/Delphi employee Amsoil Dealer/User for 21 years Volunteer Firefighter for 16 yrs.
Reply With Quote
