MolaKule
Staff member
Originally Posted by mattwithcats
I put a TES-295 fluid in my 2002 Saturn, which specifies Dexron III...
TES-295 fluids start out at the same viscosity as Dexron III, a little thicker than VI,
But because they are synthetic, they do not shear down.
Dexron III shears down to Dexron VI viscosity over time...
https://www.allisontransmission.com/parts-service/approved-fluids/on-highway-fluids...
Synthetic base oils have little to do with the shearing-down of the fluid.
The type, structure, and quality of the Viscosity Index Improver (VII) is what determines how much the shearing-down of viscosity takes place. Modern LV fluids such as MaxLife and Dexron VI are not allowed to drop in viscosity more than about 1/2 cSt from 40C to 100C.
Modern LV fluids are the most shear, heat, and fm stable ATF's to date.
BTW, if the fluid is black, and one thing not discussed so far, is it is very important to change the filter as well since it may be partially obstructed with particulates.
I put a TES-295 fluid in my 2002 Saturn, which specifies Dexron III...
TES-295 fluids start out at the same viscosity as Dexron III, a little thicker than VI,
But because they are synthetic, they do not shear down.
Dexron III shears down to Dexron VI viscosity over time...
https://www.allisontransmission.com/parts-service/approved-fluids/on-highway-fluids...
Synthetic base oils have little to do with the shearing-down of the fluid.
The type, structure, and quality of the Viscosity Index Improver (VII) is what determines how much the shearing-down of viscosity takes place. Modern LV fluids such as MaxLife and Dexron VI are not allowed to drop in viscosity more than about 1/2 cSt from 40C to 100C.
Modern LV fluids are the most shear, heat, and fm stable ATF's to date.
BTW, if the fluid is black, and one thing not discussed so far, is it is very important to change the filter as well since it may be partially obstructed with particulates.
Last edited: