Gear Oils - Penrite?

Submitted: Friday, Jan 02, 2009 at 17:44
ThreadID: 64740 Views:5750 Replies:4 FollowUps:5
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Vehicle is a 75 series Landcruiser, and i am about to do the diffs and gearbox/transfer case. Im a little weary on what oil to use

Gregory manual says to use;
Gearbox and Transfer Case- SAE 90 GL4 or GL5
Front Diff- SAE 90 Hypoid Gear Oil GL5
Rear Diff- SAE 90 Lim Slip Hypoid Gear Oil GL5

Penrite Website says;
Gearbox/Transfer Case- Transaxle 75
Diffs- Hypoid 80W/90

Now i already have some Lim Slip oil for rear diff so thats ok, its just my local Auto One only has Hypoid 80W/90, no Transaxle 75. What i want to know is can i use the Hypoid 80W/90 for my Gearbox and Transfer Case or should i try get some Transaxle 75 somehow. Is there much of a difference in the two oils? Its just that the bloke at Auto Pro told me it would be fine so i brought 7.5L (2.5L Bottles -No Larger amounts available, Rip Off), but now it makes me wonder if Penrite say to use the other stuff.

Any mechanics out there or 75 Series owners
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Reply By: Member - Rob S (NSW) - Friday, Jan 02, 2009 at 17:58

Friday, Jan 02, 2009 at 17:58
Dont listen to the bloke at auto pro.
Don't use the 80/90 in the gear box/ trasfercase to oil is to heavy.
You will probably find it very hard to change gear.
Transaxle 75 will be ok.
I use penrite oil found to be very good.
Or castrol


Rob.
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and that's when I thought I was wrong!

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AnswerID: 342280

Follow Up By: Member - Rob S (NSW) - Friday, Jan 02, 2009 at 18:21

Friday, Jan 02, 2009 at 18:21
Castrol multitrax for the gear box /transfer case
If you are having trouble cold shifting try a full synthetic oil
some else here might have some info on that.
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and that's when I thought I was wrong!

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FollowupID: 609961

Follow Up By: Kroozer - Friday, Jan 02, 2009 at 19:17

Friday, Jan 02, 2009 at 19:17
Yeah i didnt think it was a good idea. They have every oil imaginable for Engines, but no Gear oils. Have to try somewere else see if they have the Transaxle or the Castrol Multitrax. Rather silly, and they only sell the gear oils in 2.5L bottles.

Cheers
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FollowupID: 609987

Follow Up By: Member - Phil G (SA) - Tuesday, Jan 06, 2009 at 12:08

Tuesday, Jan 06, 2009 at 12:08
The LandCruiser boxes shift better with the Castrol VMX-M 75-90 than they do with Multitrax.
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FollowupID: 610561

Reply By: troopyman - Friday, Jan 02, 2009 at 18:01

Friday, Jan 02, 2009 at 18:01
Let us know how you go with getting the plugs out LOL .
AnswerID: 342282

Follow Up By: troopyman - Friday, Jan 02, 2009 at 18:11

Friday, Jan 02, 2009 at 18:11
I use castrol LSX90 lsd oil for both diffs
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FollowupID: 609957

Follow Up By: Kroozer - Friday, Jan 02, 2009 at 19:18

Friday, Jan 02, 2009 at 19:18
Ha Ha dont say that, its too hot up here to be skinning knuckles and getting frustrated.
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FollowupID: 609990

Reply By: howesy - Friday, Jan 02, 2009 at 20:49

Friday, Jan 02, 2009 at 20:49
Been using Transmax Z full synthetic and it changes like a bought one. Use it in the fords tremec and T5 boxes as well.
AnswerID: 342312

Reply By: Robnicko - Friday, Jan 02, 2009 at 21:20

Friday, Jan 02, 2009 at 21:20
castrol VMX is good for the transfer case specs are 75w90
AnswerID: 342319

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