- Joined
- Apr 2, 2008
- Messages
- 492

Would love to use GL-5 oil in my gearbox but I have heard many times that they attack brass. Any thoughts.
BrianK said:Cookie - hi. Royal Purple is GL-4 I believe. That's what I've been using pending confirmation that GL-5 is okay - in which case I'll happily switch to Redline Shockproof gear lube (nothing wrong with the Royal Purple, I'm just a big Redline fan).
BrianK said:I too would love to be convinced, but 100 degrees centigrade is only 212 degrees fahrenheit (?) I could see cases heating gearlube up to that point during a hot run...no?
Believe me, I wanna be convinced!!!
ludwig said:79x100 : gear box oil change every 1000 mls ???
How often do you change the oil in the gearbox of your car ?
I only change the oil when I have to do somethng in the box , like changing an oil seal ore something . Maybe every 10 - 20000 km .
What's so special about the gears of a Norton that they need fresh oil every 1000 mls ?
On a 3000 mls holiday trip that would mean 2 oil changes ...not very practical !