Best gearbox/LSD oil for Gen3 turbo SW20?

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (artymr2)

Sun, 30 Dec 2012 01:41:12 GMT

Car is running, caltex gear oil is performing well, shifts are great, even when cold (well ambient temp ~35 degrees).

Factory LSD turbo box, took under 4 litres to fill.

Cheers

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (artymr2)

Fri, 17 Aug 2012 22:26:03 GMT

Picked up 4 litres today of the easy shift from Welshpool. Will report back once the car is running!!

Cheers

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (artymr2)

Fri, 17 Aug 2012 10:54:05 GMT

The penrite wasnt that much more than the castrol from memory? The viscosity range is not as much as the castrol too, not sure how that would affect things?

mr2qik, do you have a link for the listing of stockists of the easy shift oil? I could only find listings for various fuels?

Cheers

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (P E T E)

Fri, 17 Aug 2012 09:26:34 GMT

Another reccomendation is the Penrite Gearbox Oil as mentioned via Road and Track. I've given this a go and find it ok. Just make sure you get the right stuff, shame it isn't the cheapest oil to come by! Previously I had the Castrol Fully Synthetic ATF which seemed fine also.

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (MR2QIK)

Fri, 17 Aug 2012 08:36:48 GMT

They list on their website who stocks it.

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (artymr2)

Fri, 17 Aug 2012 00:24:17 GMT

Thanks for the heads up. I did ring another large caltex but they didnt stock it. Might try some others closer by.

Cheers

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (MR2QIK)

Thu, 16 Aug 2012 20:21:34 GMT

You get the Caltex oil from selected petrol stations. There's one near me. They even sell drums....lol

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (Dr.J)

Thu, 16 Aug 2012 17:37:17 GMT

Well I just filled up the transaxle with MT90.
I literally filled it up because it started streaming out again.
Anyway, it's full so I'll see how it goes.

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (artymr2)

Thu, 16 Aug 2012 16:21:38 GMT

Went to Repco and Auto1, both only had the Castrol GL4 VMX-M 75W85, and 2 Penrite GL4 olis, 75W80 and a 80w85.

Caltex welshpool have the GL4 75w90 ($40.15 for 4litres) they said its unlikely any shops would stock it as its not a popular oil.

Cheers

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (big_al_92t)

Thu, 16 Aug 2012 16:15:06 GMT

Agree, sometimes it's best to take what the American's on the MR2OC have to say with a pinch of salt.
By the way your build is absolutely amazing. That larger supercharger is going to be incredible.

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (artymr2)

Thu, 16 Aug 2012 14:19:09 GMT

Only gl4 caltex oil at super cheap is vmx-m which is a 75w-85. No blurb on the back and overlaid sticker on front. Will check repco.

Cheers

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (MR2QIK)

Thu, 16 Aug 2012 12:09:22 GMT

I'm quite confident it was the MT90. I spoke with a few others around the globe that had the same issue (one in UK & US). It is not immediately apparent. For the first year or two, shifting felt fine. The synchros simply wore prematurely. It came to the point that I had to resort to ATF to prolong rebuilding the box for a year or two.

It may very well be something else at work, but given that fresh rebuilt transmission lived & died on MT90, I'm not down for another round or willing to recommend. If I were to buy another MR2 & it had MT90 in it, I'd change it immediately.

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (Reddtarga)

Thu, 16 Aug 2012 11:44:00 GMT

From the '91 service manual:

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (artymr2)

Thu, 16 Aug 2012 10:22:01 GMT

My friend had ATF in his turbo box for many years with no issues.

Cheers

Re:Best gearbox/LSD oil for Gen3 turbo SW20? (purple5ive)

Thu, 16 Aug 2012 08:40:31 GMT

Adrian
All I know is that it was red and worked perfectly.

Could have been Automatic transmission fluid.