HOT 300 degree 4l80E
Mid season update on our Subs 4l80E. I have taking the truck to a shop at the beginning of the season for hot towing concerns and given a clean bill of health. I have figured out why and which RPMs ...
Forum Discussion
Change the tranny fluid. Drain and refill. Run about 100 miles. Drain and fill again. This will help flush the torque converter. I would go to a synthetic TES 295 fluid.
I have an Allison - transmissions generally work OK at 220F but can go to 330F intermittant.
TES-389 and TES-295 are both transmission fluid specifications. TES means "Transmission Engineering Specification".
TES-389
The TES-389 specification required that the fluid to be tested to neet GM standards. This meant that it had been approved by General Motors to carry the DEXRON registered trademark. GM is now using DEX VI
TES-295 (synthetic)
The TES-295 specification is a complete specification that includes a whole bunch of different tests. It was designed to test fluids and only approve the ones that showed the following exceptionally good fluid properties:
Oxidation Resistance
Viscosity Stability
Seals Compatibility
Wear Resistance
TES 295® Approval Number / Approved Marketer / Product Brandname
AN-011001 Castrol Heavy Duty Lubricants---- TranSynd
AN-031002 BP Lubricants---- Autran Syn 295
AN-031003 BASF Corporation---- Emgard 2805
AN-031004 International Truck & Engine Company----Fleetrite Synthetic ATF
AN-051005 ExxonMobil Lubricants and Petroleum Specialties Co---Mobil Delvac Synthetic ATF
AN-071006 John Deere & Company---- HD SynTran
AN-1010007 Mack Trucks, Inc ----Bulldog Synthetic ATF
AN-121009 Case New Holland---- CNH HD Synthetic ATF
AN-121008 Shell International Petroleum Co. LTD.----Shell Spirax S6 ATF A295
I have an Allison - transmissions generally work OK at 220F but can go to 330F intermittant.
TES-389 and TES-295 are both transmission fluid specifications. TES means "Transmission Engineering Specification".
TES-389
The TES-389 specification required that the fluid to be tested to neet GM standards. This meant that it had been approved by General Motors to carry the DEXRON registered trademark. GM is now using DEX VI
TES-295 (synthetic)
The TES-295 specification is a complete specification that includes a whole bunch of different tests. It was designed to test fluids and only approve the ones that showed the following exceptionally good fluid properties:
Oxidation Resistance
Viscosity Stability
Seals Compatibility
Wear Resistance
TES 295® Approval Number / Approved Marketer / Product Brandname
AN-011001 Castrol Heavy Duty Lubricants---- TranSynd
AN-031002 BP Lubricants---- Autran Syn 295
AN-031003 BASF Corporation---- Emgard 2805
AN-031004 International Truck & Engine Company----Fleetrite Synthetic ATF
AN-051005 ExxonMobil Lubricants and Petroleum Specialties Co---Mobil Delvac Synthetic ATF
AN-071006 John Deere & Company---- HD SynTran
AN-1010007 Mack Trucks, Inc ----Bulldog Synthetic ATF
AN-121009 Case New Holland---- CNH HD Synthetic ATF
AN-121008 Shell International Petroleum Co. LTD.----Shell Spirax S6 ATF A295
