ZF Gearbox Oil spec - ZR-1 Net Registry Forums

richarde · 09-29-2019

I have a 1990 ZR-1 with an Aluminum flywheel. I purchased this in Jan 2019. Currently the engine and gearbox are out of the car, the car not having been run since 2012. My question relates to the best oil to use in the gearbox to reduce the transmission noise associated with an ali flywheel. On Marc's website, he advises Red Line Shockproof Heavy oil. The FSM specifies a viscosity of 5W-30 Manual Transmission Fluid. In the UK, the only Red Line Shockproof Heavy oil that I can find is rated as 75W-140. Is this the oil to buy as there seems a big difference between 5W-30 and 75W-140!!
Thanks

09-29-2019	#1
richarde Join Date: Sep 2012 Location: United Kingdom Posts: 68	ZF Gearbox Oil spec I have a 1990 ZR-1 with an Aluminum flywheel. I purchased this in Jan 2019. Currently the engine and gearbox are out of the car, the car not having been run since 2012. My question relates to the best oil to use in the gearbox to reduce the transmission noise associated with an ali flywheel. On Marc's website, he advises Red Line Shockproof Heavy oil. The FSM specifies a viscosity of 5W-30 Manual Transmission Fluid. In the UK, the only Red Line Shockproof Heavy oil that I can find is rated as 75W-140. Is this the oil to buy as there seems a big difference between 5W-30 and 75W-140!! Thanks