MolaKule
Staff member
Originally Posted by SoNic67
I don't know why people recommend LV fluids when the original spec is higher viscosity.
Because the OE will shear down? So you want your fresh fluid to be already that low in VI? Makes no sense.
I want something that starts with OE specified VI and... stay there as long as I am using it.
AMSOIL Signature Series (non fuel efficient), Red Line D4...
A viscosity drop of about 0.75 cSt with a fluid specifically designed for manual transmissions?
Viscosity shear down with an ATF means less fluid film for bearings and gear teeth. My preference is to use a stable MTF that does not shear the fluid film for wear protection and one that provides the proper synchro friction modification, which an ATF does not have.
I don't know why people recommend LV fluids when the original spec is higher viscosity.
Because the OE will shear down? So you want your fresh fluid to be already that low in VI? Makes no sense.
I want something that starts with OE specified VI and... stay there as long as I am using it.
AMSOIL Signature Series (non fuel efficient), Red Line D4...
A viscosity drop of about 0.75 cSt with a fluid specifically designed for manual transmissions?
Viscosity shear down with an ATF means less fluid film for bearings and gear teeth. My preference is to use a stable MTF that does not shear the fluid film for wear protection and one that provides the proper synchro friction modification, which an ATF does not have.
