Oil for gearbox

[Bricstar]

Hey  wanting to fill up my gearbox with new oil but I'm unsure of what to use? Is it the same 15w I put in my engine or something different. Pleas help!!

[oldschool]

Just use engine oil...SF to SJ spec. Can't use newer spec oils in Avenger engines and gearboxes as they're made for modern cars.

[Bricstar]

I think I run my 1500 on 15w40... Is that alright to use? I looked it up and it says it boils take about 1.7 litres of the stuff :/

[oldschool]

Sounds fine!

[Scarlet]

Hi Ross, is the reason for not being able to use modern oil something to do with the modern oil attacks the brass syncro rings, or is it because it is to thin?

[oldschool]

Not too thin Steve, it's because modern oil is more slippery and the synchros might not work so well. They also removed some of the additives which benefitted older engines.

[JoKer]

I've never put oil in gearbox but would assume gear oil better than engine oil?

plus I love the smell of Diff oil, you just cant wash it off your hands

[Bricstar]

cool well thanks for that one, i have recently had a lot of problems with my brakes too. and it looks quite costly getting the master cilynder and brake booster reconditioned so i wanted to ask if you boys knew (or happened to have any spares...?)
thanks in advance