| I change mine about every 7500 miles or so. Mike L. recommends to change it more often than the owner's manual states. I feel it is cheap insurance on an expensive tranny. In case you don't know, Mike L. is the resident Allison guru on most GM forums.
__________________ 2004 GMC 2500HD D/A CC Carbon Metallic w/ LB7
4" turbo back MBRP exhaust
TST Powermax Programmer, Diablosport Predator
285/75-16 BFG T/A KOs, Eagle Alloys Series 187
Clifford 2 way remote start, High Idle, Bilsteins
Extang Classic Platinum Tonneau Cover
AFE Magnum Force Stage 2 Proguard 7 intake Kennedy Diesel Merchant Automotive My Photos |