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Gearbox oil???

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Bubbles-Tezza
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Gearbox oil???

Postby Bubbles-Tezza » Mon Oct 06, 2008 2:06 pm

Does anyone have any suggestions what gearbox oil to use??
I have the unfortunite 3000rpm rumble and was told to use castrol VXM oil but can get it at my local supplier!!
Oil type, grade and what u though of it??
Gettin it tomorrow evening so need suggestions asap cheers!!
Bubbles-Tezza

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Dan
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Postby Dan » Mon Oct 06, 2008 2:15 pm

Last edited by Dizz on Fri Mar 13, 2009 12:20 am, edited 1 time in total.
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lanigan
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Postby lanigan » Mon Oct 06, 2008 3:17 pm

Put in some Slick 50 or similar PTFE additive to quieten it (will only be very slightly) and prolong the life of the box

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E910
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Postby E910 » Tue Oct 07, 2008 8:38 am

The 3000rpm rumble isn't coming from your gear box. It seems to be a very common problem with Altezzas. There's been lots of talk about where it actually comes from, but as of yet I dont think anyone has pin pointed it as such for an easy fix. Have a read of this thread http://z4.invisionfree.com/lexusaltezzaclub/index.php?showtopic=962


As for gearbox oil (I assume you have manual?) you must use a GL4 or lower spec oil in your 6MT anything higher i.e. GL5 (which a lot of synthetic gear oil is) will causes the brass syncros to wear.
I'd recommend Redline MT90 or TRD 75W90. Redline is GL4 & TRD GL3 which is what Toyota recommends. Both are fully synthetic too. There will be mineral options (like VMX) but Im all about the full synthetic oils in gear boxes & diffs due to the long service intervals & abuse they take.
Also dont put any additives/friction modifiers in your gear box oil, they will affect the GL rating.

If you have an Auto Trans get some genuine ATF from your local Toyota dealer.
Last edited by E910 on Sun Oct 04, 2009 9:42 pm, edited 2 times in total.

Rob
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Postby Rob » Tue Oct 07, 2008 8:52 am

E910 wrote:I'd recommend Redline MT90 or TRD 75W90


Are these available here? I know CDA do Redline, has anyone got MT90 there?

How difficult is it to change the gearbox oil? Is it harder than the diff, especially if you don't have a lift?

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Tezzy
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Postby Tezzy » Tue Oct 07, 2008 9:53 am

Rob wrote:How difficult is it to change the gearbox oil? Is it harder than the diff, especially if you don't have a lift?


its no harder than the diff, easier to refill the gearbox if anything.

I put GL5 in my gearbox a couple of weeks back, the guy in the shop reckoned the GL5 would be as good if not better than GL3. Best get it out of it so and do as Mr Toyota recommende so :evil:

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james1485
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Postby james1485 » Fri Oct 24, 2008 10:31 pm

what about lucas SAE75w90 gearbox and diff oil??? it doesnt say GL3/4 just SAE75w90.

its a high preformance oil from the US just ticking off here now. its suppose to be the ducks nuts from what i hear anyway???

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E910
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Postby E910 » Tue Nov 04, 2008 9:02 pm

From their spec sheet it just says exceeds all GL classifications, so I wouldn't use it in an Altezza 6MT.

http://www.lucasoil.com/images/medialibrary/7590_syn_gear_oil.pdf


Having a quick look around & I've found one other suitable 75w90 Amsoil
Last edited by E910 on Mon Oct 05, 2009 3:00 am, edited 2 times in total.

Rob
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Postby Rob » Wed Nov 05, 2008 10:32 am

What quantity does it take?

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Tezzy
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Postby Tezzy » Wed Nov 05, 2008 10:56 am

Rob wrote:What quantity does it take?


2 litres

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Shane M
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Postby Shane M » Thu Nov 13, 2008 2:52 pm

Lads how do you check the gearbox oil level and change it etc? and should it be changed regular like the engine oil?

I just changed my engine oil and filter and would like to change all other oils that are necessary.

Cheers for the help ;)

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E910
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Postby E910 » Fri Nov 14, 2008 1:25 am

You don't really need to check the levels like you would your engine oil as there is no where for it to go unless there is a leak. Service intervals are 80,000km for gear box & diff from memory.
The only other oil I can think of you'll need to change regularly is brake fluid which is around every 40K

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Shane M
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Postby Shane M » Sat Nov 15, 2008 6:11 pm

Ok thanks mate... Ive got another 6000km until i hit 80,000k :)

It would be good to know for future reference though, how to change the gearbox and diff oil? if someone wants to share ;)

Cheers

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Postby Rob » Sat Nov 15, 2008 8:07 pm

Shane M wrote:Ok thanks mate... Ive got another 6000km until i hit 80,000k :)


Don't be so sure, the prevalence of clocking is very high. If in doubt, change it now and then you don't have to worry!

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Shane M
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Postby Shane M » Sat Nov 15, 2008 9:34 pm

I know, unfortunately thats always the uncertainty when buying a used car... I suppose even more so when its an import :roll:


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