JHZR2 - at least we are on the same page
Assuming that the VW/Audi G052911A2 is FUCHS SINTO FLUID 75W80 with these specs:
Density at 15ºC DIN 51757 0.882 g/ml
Flash Point, CoC DIN ISO 2592 190ºC
Pourpoint DIN ISO 3016 -48ºC
Dynamic Viscosity at -40ºC DIN 51398 37,000 mPas
Kinematic Viscosity at 40ºC DIN 51562-1 49.8 mm²/s
Kinematic Viscosity at 100ºC DIN 51562-1 9.4 mm²/s
How big of a dice roll am I taking with transmission longevity switching to the lighter Fuchs TITAN SINTOFLUID FE SAE 75W?
Density at 15ºC DIN 51757 0.877 g/ml
Flash Point, CoC DIN ISO 2592 221ºC
Pour Point DIN ISO 3016 -44ºC
Foaming Tendency Seq. I/II ASTM D 892 20/0 ; 30/0 ml
Dynamic Viscosity at - 40ºC DIN 51398 75,000 mPas
Kinematic Viscosity at 40ºC DIN 51562-1 40.8 mm2/s
Kinematic Viscosity at 100ºC DIN 51562-1 6.7 mm2/s
Is it possible that the FE 75W is thicker at -40C than the 75W-80???
Dynamic Viscosity at -40ºC DIN 51398 37,000 mPas
vs
Dynamic Viscosity at - 40ºC DIN 51398 75,000 mPas