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Gear Oil for 5MT
View Poll Results: Which Gear Oil do you use or recommend?
Valvoline SynPower 75W90 4 4.17%
Mobile 1 Synthetic Gear Oil 75W90 6 6.25%
Royal Purple Max Gear 75W90 10 10.42%
Redline MT90 4 4.17%
Redline 75W90NS 18 18.75%
Motul Gear 300 23 23.96%
Amzoil 4 4.17%
Lucas 2 2.08%
Other, specify 25 26.04%
Voters: 96. You may not vote on this poll

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Old 04-12-2009, 11:18 AM   #1
Fav Mod: Bilstein/Whiteline Setup
Join Date: May 2007
Location: San Diego, CA
Trader Rating: (1)
Posts: 521
Default Gear Oil for 5MT

So I figured I'd make a poll for this, see what most people prefer and their feedback on specific gear oils for the 5MT.

Right now I'm using Valvoline SynPower Synthetic 75W90 in my newish 2000 Impreza RS tranny in my Subaru Outback.

Tell us what you use and recommend and stay away from.
"What the FUCK is that?" -It's what makes a Subaru, a Subaru.
gryffinwings is offline   Reply With Quote
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Old 04-12-2009, 11:30 AM   #2
Car: 2000 Subaru Impreza 2.5RS Blue
Join Date: Jul 2007
Location: Minneapolis
Trader Rating: (1)
Posts: 436

I use Redline 75w90NS, transmission feels great! I'd recommend it.

Although, haven't tried anything else besides what the car came with - so nothing to compare it to.
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Old 04-12-2009, 10:25 PM   #3
Car: '00 2.5RS SRP '04 4STR-XT OBP
Fav Mod: Borlas,RT SHF CAT,STI CBE
Join Date: Mar 2002
Location: Las Vegas,NV
Trader Rating: (2)
Posts: 405
Default 5MT Oil

1 qt - GM synchromesh
Ballance - Castrol synthetic gear lube

Very smooth and no cold weather sticky shifts...

Last edited by DaveG2; 04-13-2009 at 07:06 AM..
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Old 04-12-2009, 11:54 PM   #4
2.0L Turbo
Car: 2001 STM Sedan
Fav Mod: Suspension
Join Date: Jan 2005
Location: Boise, Idaho
Trader Rating: (7)
Posts: 1,651

uncle scotty's all the way
Anyone wanna buy a 2003 CBR 600 F4i?
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Old 04-13-2009, 12:42 AM   #5
Car: 4dr 2.5RS 2000
Fav Mod: Rumble unleashed
Join Date: Dec 2008
Location: Near Montreal
Trader Rating: (0)
Posts: 188

I clicked other because I also wanted to know what ppl thought and i dont really want to recommend anything scince i'm quite a noob.
Altho i've heard in other threads on this forum that "Extra S" from the subaru dealer was good.
You are a Bus
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Old 04-13-2009, 03:01 AM   #6
Fav Mod: Not using 1st gear.
Join Date: Oct 2008
Location: Modesto/Davis, CA
Trader Rating: (1)
Posts: 182

Originally Posted by BraveOpen View Post
uncle scotty's all the way
I remember a thread not so long ago about the side effects of uncle scotty's. How has it been treated you? How long have you been using it? I was always curious about using it.
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Old 04-13-2009, 06:54 AM   #7
Car: 98 Brighton - almost
Join Date: Jul 2008
Location: Toronto, Ontario
Trader Rating: (0)
Posts: 18

Castrol Syntec 75W90 in both of the 02 WRX gearboxes I've run. No complaints during the summer or some of the Canadian winters they've seen (although -50C/-58F was a bit thick)
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Old 04-13-2009, 07:01 AM   #8
Car: 99 RS BRP
Fav Mod: exhaust
Join Date: Mar 2008
Location: Minneapolis,MN
Trader Rating: (6)
Posts: 517

I dumped uncle scotty, I have extra S. works well, just as good as uncle's without eating the gears.
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Old 04-13-2009, 07:08 AM   #9
2.5L RS-T
Car: GF OBS-T, GM RS EJ20, SF EJ20
Fav Mod: EJ222+10psi=12.89s 1/4
Join Date: Jul 2006
Location: NYC
Trader Rating: (58)
Posts: 4,973

I use Redline 75-90NS, but plain jain Dino Valvoline 75-90 works well too.
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Old 04-13-2009, 07:11 AM   #10
2.5L RS-T
Join Date: Aug 2007
Trader Rating: (24)
Posts: 4,494

i just put in valvoline 75w90. non syn
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