Brumby gearbox oil change.

scoobymine · Post by **scoobymine** » Sun Oct 11, 2009 11:10 am

I'm about to drain and replace g/box oil on my 83 brumby.
Is it still best to use 80/90 oil, or is there a better alternative these days.
She's basicly just a street car, no real offroading.

Thanks

phillatdarwin · Post by **phillatdarwin** » Sun Oct 11, 2009 11:54 am

that is all i are running in my L

AlpineRaven · Post by **AlpineRaven** » Mon Oct 12, 2009 7:19 pm

Use factory specification gearbox oil. How many kms is your Brumby? Is the gearbox in good working condition?

Cheers
AP

GOD · Post by **GOD** » Mon Oct 12, 2009 7:51 pm

Should use one that's designed for transaxles. Hypoid cut gears such as in diffs have different lubrication requirements to the helical and straight cut gears in gearboxes, so a RWD manual gearbox oil is not suitable.
Castrol Multitrax goes alright; there's also a Penrite Transaxle, very expensive Redline and others.

Dane.

AlpineRaven · Post by **AlpineRaven** » Tue Oct 13, 2009 8:23 pm

GOD wrote:Should use one that's designed for transaxles. Hypoid cut gears such as in diffs have different lubrication requirements to the helical and straight cut gears in gearboxes, so a RWD manual gearbox oil is not suitable.
Castrol Multitrax goes alright; there's also a Penrite Transaxle, very expensive Redline and others.

Dane.

Redline is something like $80 per litre?
I use multirax in mine at the moment - goes okay. (only crunches when gearbox is very hot)
Cheers
AP

scoobymine · Post by **scoobymine** » Thu Oct 22, 2009 7:29 pm

She's done about 160,000. Gearbox is good, no crunching.