Differential
Manual says to replace differential oil with SHELL Spirax S 75W140. I can't find that, would Pennzoil 75W140 Full Synthetic Gear Oil work instead? Or should I use Redline 75w140 instead? It looks like they both meet the specs, but what's best in your opinion? I think I need about 1.1L, is that right?
Gearbox
Manual also says that gearbox oil is SHELL M1375.4 DEXTRON III. I know the oil needs to meet the M1375.4 specification (which is ZF Lifeguard 6 fluid). What can I use here and how much? I'm thinking 6L of ZF LifeGuard 6 Automatic Transmission Fluid S671090255 (5L gets stuck in the oil pump and torque converter). I'm thinking of also changing the filter inside there while I'm at it, what's your opinion on that?
Manual says to replace differential oil with SHELL Spirax S 75W140. I can't find that, would Pennzoil 75W140 Full Synthetic Gear Oil work instead? Or should I use Redline 75w140 instead? It looks like they both meet the specs, but what's best in your opinion? I think I need about 1.1L, is that right?
Gearbox
Manual also says that gearbox oil is SHELL M1375.4 DEXTRON III. I know the oil needs to meet the M1375.4 specification (which is ZF Lifeguard 6 fluid). What can I use here and how much? I'm thinking 6L of ZF LifeGuard 6 Automatic Transmission Fluid S671090255 (5L gets stuck in the oil pump and torque converter). I'm thinking of also changing the filter inside there while I'm at it, what's your opinion on that?