@MolaKule:
in another post you specified:
Quote:
75W85 Series-Type; 9.8 to 11.5 cSt ( Redline's MTL, RP's Synchromax LT, Nissan's MTL, Honda MTL, Castrol Syntorq LT)
Castrol Syntrans V FE 75W-80 is round about 2 cSt away from the lower bound of this range.
Is 9.8 a white paper value ?
2 cSt is 20% deviation. I can't evaluate if this is critical.
But in my small knowledge viscosity is a issue of gearbox design (my car is a van). So I wonder if the specified and recommended range may be left without any impact to the gearbox.
But if the tribologist says it is not really a problem, I will try
Above you said further
Quote:
... until hot weather reappers and see how shifting is at that time.
What are you possibly expecting in hot weather concerning shifts, when oil is becoming too thin ?
Quote:
Assuming your Beemer specs a 7.5 cSt fluid, I think the one of the fluids from the following list would be much better in terms of wear control:
1. Royal Purple's Synchromax
2. Ravenol MTF-2
3. Honda MTF
4. VW part number G052512A2
5. GM Manual Transmission and Transfer Case Fluid
6. BMW (Pentosin) MTF-LT-1, 2
RL D4 ATF has a API GL4 protection
in another post you specified:
Quote:
75W85 Series-Type; 9.8 to 11.5 cSt ( Redline's MTL, RP's Synchromax LT, Nissan's MTL, Honda MTL, Castrol Syntorq LT)
Castrol Syntrans V FE 75W-80 is round about 2 cSt away from the lower bound of this range.
Is 9.8 a white paper value ?
2 cSt is 20% deviation. I can't evaluate if this is critical.
But in my small knowledge viscosity is a issue of gearbox design (my car is a van). So I wonder if the specified and recommended range may be left without any impact to the gearbox.
But if the tribologist says it is not really a problem, I will try
Above you said further
Quote:
... until hot weather reappers and see how shifting is at that time.
What are you possibly expecting in hot weather concerning shifts, when oil is becoming too thin ?
Quote:
Assuming your Beemer specs a 7.5 cSt fluid, I think the one of the fluids from the following list would be much better in terms of wear control:
1. Royal Purple's Synchromax
2. Ravenol MTF-2
3. Honda MTF
4. VW part number G052512A2
5. GM Manual Transmission and Transfer Case Fluid
6. BMW (Pentosin) MTF-LT-1, 2
RL D4 ATF has a API GL4 protection