G50 gearbox oil ???

[TuxMan]

ok done a search but can,t find anything ,want to change the gearbox oil in my G50 but not sure what to use ,when i bought the box from the factory they supplied me with the oil but i cannot find the bottle or invoice is there anything better or am i best going back to the factory ~???


is it a pretty easy job to do in the car as last time i did it box was out on the floor .

[gtr-gaz]

Simon, factory supplied me with synthetic based gear oil. GL5 spec.
SX75w90. Made by Comma.

3.5 litres (I think)

[ditto]

TuxMan said:

ok done a search but can,t find anything ,want to change the gearbox oil in my G50 but not sure what to use ,when i bought the box from the factory they supplied me with the oil but i cannot find the bottle or invoice is there anything better or am i best going back to the factory ~???


is it a pretty easy job to do in the car as last time i did it box was out on the floor .

SX 75 W 90 synthetic based gear oil, but on a can am it might be GAY-ER lube oil
if i remember right draining it is ok, but filling it is a pig

Keith

[TuxMan]

now you come to mention it Gaz i think it was comma stuff i got last time !!!

if anyone is near Kieth give him a slap !!!

[ditto]

TuxMan said:

if anyone is near Kieth give him a slap !!!

cor if only there was a slapper near me now, the wife's is at work

Edited by ditto on Thursday 28th February 19:07

[bluesatin]

Swepco is what all the porker owner use in the US and certainly feels like it cushions the gears in my car!

http://www.swepcousa.com/lubesite/highperf.htm

[kylemrushall]

Millers do a nice 75 90 gearbox oil, i thought it was semi not full synthetic??

3.5 litres in my Getrag, i imagine the g50 will be the same

[TuxMan]

thanks guys will get some and change it next week when i give her a full service !!!

[GTRCLIVE]

Just remember the wrong Oil will tear up your Diff gears..... Mine did (Not cheap)and I had Mobile 1, 75x90 and Commer oil did the same again.... Go with Guys recomendation, he's done alot of miles...

[CanAm Dave]

GTRCLIVE said:

Just remember the wrong Oil will tear up your Diff gears..... Mine did (Not cheap)and I had Mobile 1, 75x90 and Commer oil did the same again.... Go with Guys recomendation, he's done alot of miles...

Hi Clive

I find this strange as Porsche recommend Mobil 1 and it is used by the Porsche cup racers. CMS have suggested to me to use it in my new transaxle. It's a bit of a minefield this as everyone you speak to recommends a different oil.

Guy says
'Swepco is what all the porker owner use in the US and certainly feels like it cushions the gears in my car!'

What do you mean by this Guy? Is it that the transaxle sounds quieter because I like to think I have mechanical empathy for my car but that's not easy to tell!

Regards Dave

[bluesatin]

You get the feeling as each gear engages that a bit of cushion is happening. Bit like the engine feels better with fresh oil!

Here is an example of some of the comments on Swepco. Finally Porsche racers are not using 10-15 year old G50!

http://www.sempca.org/techtips/trans_oil/index.htm

Edited by bluesatin on Friday 29th February 08:40

[TuxMan]

ok thanks for the responses guys ,i,ve used the comma for 3 years with no problems the onlt issue i have and its always been there is the shift from 1st to 2nd when cold is very tight but once its warm its spot on !!! just wondered wether changing the oil would help this ???

[jschwartz]

I've used Mobil 1 75w90 gear lube for 42,000 miles in my G50/52.
Took it down for inspection at 30,000 miles before the twin turbo installation, all was good.