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#4474811 - 07/30/17 04:38 PM Miles or Time for 5 speed manual gear lube change
mtlineman Offline


Registered: 09/15/08
Posts: 34
Loc: Billings Mt
I have an 06 Tacoma 4 cyl 5 speed with 31000 miles on it. Do I need to change the gear lube in it ? Changed to synthetic in the rear end at 15,000 miles. If I do what do you think of GL4 redline synthetic ? Thanks for the help

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#4474846 - 07/30/17 05:19 PM Re: Miles or Time for 5 speed manual gear lube change [Re: mtlineman]
E150GT Offline


Registered: 03/11/12
Posts: 1109
Loc: San Antonio, TX
Redline is supposed to be one of the best. You could change it or not. I never changed my old Mazda transmission fluid at all in the 115k I had it and my truck got changed at 238k for probably the first time. I'll probably change the oil on my new Mazda at 100k miles.
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#4474884 - 07/30/17 06:27 PM Re: Miles or Time for 5 speed manual gear lube change [Re: mtlineman]
justintendo Offline


Registered: 03/04/17
Posts: 102
Loc: northwest pa
you dont need to change it...but i would have changed it fairly soon after new, just because of break in. i would install redline of the correct weight for sure. seems they really have it together for gearbox lubes. 50k-100k is probably a good interval afterward.
ive installed the appropriate redline in my fusions and my f150s gearboxes...been very impressed.
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#4474920 - 07/30/17 07:05 PM Re: Miles or Time for 5 speed manual gear lube change [Re: mtlineman]
Linctex Offline


Registered: 12/31/16
Posts: 6160
Loc: Waco, TX
Originally Posted By: mtlineman
I have an 06 Tacoma 4 cyl 5 speed with 31000 miles on it.


WOW, you don't drive it much?

I change often, but only because all my manual transmissions are operated at peak torque rating about 50% of the time.
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#4475262 - 07/31/17 07:31 AM Re: Miles or Time for 5 speed manual gear lube change [Re: mtlineman]
Lubener Offline


Registered: 01/22/11
Posts: 2577
Loc: N.Ohio
Gear oil doesn't go bad sitting idle in the gearcase. Myself, I wouldn't drain it now unless it had water contaimination or was pulling a heavy load all the time.


Edited by Lubener (07/31/17 07:33 AM)
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#4475267 - 07/31/17 07:39 AM Re: Miles or Time for 5 speed manual gear lube change [Re: mtlineman]
MolaKule Offline


Registered: 06/05/02
Posts: 19042
Loc: Iowegia - USA
I would drain it and replace it with:

https://www.redlineoil.com/product.aspx?pid=45&pcid=7

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#4475861 - 07/31/17 06:50 PM Re: Miles or Time for 5 speed manual gear lube change [Re: mtlineman]
SilverFusion2010 Offline


Registered: 06/29/11
Posts: 1663
Loc: Crawfordville FL
Does it look like oil or is it grey from wear particles? If grey and yucky, drive and get it hot for better drain then refill with the redline
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#4476166 - 08/01/17 04:24 AM Re: Miles or Time for 5 speed manual gear lube change [Re: SilverFusion2010]
Lubener Offline


Registered: 01/22/11
Posts: 2577
Loc: N.Ohio
If it has gray wear particles present in 31k miles, there's bigger issues going on other than gear oil.


Edited by Lubener (08/01/17 04:25 AM)
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#4476665 - 08/01/17 03:43 PM Re: Miles or Time for 5 speed manual gear lube change [Re: MolaKule]
BigD1 Offline


Registered: 08/12/15
Posts: 2575
Loc: NC
Originally Posted By: MolaKule
I would drain it and replace it with:

https://www.redlineoil.com/product.aspx?pid=45&pcid=7


Excellent choice. thumbsup

It's going in my Toyota five speed soon.

Redline a Phillips 66 brand now?
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#4476946 - 08/01/17 08:52 PM Re: Miles or Time for 5 speed manual gear lube change [Re: Lubener]
SilverFusion2010 Offline


Registered: 06/29/11
Posts: 1663
Loc: Crawfordville FL
Originally Posted By: Lubener
If it has gray wear particles present in 31k miles, there's bigger issues going on other than gear oil.


Ex wife did terrible things to cars. I wish I had photos of the [censored] I got out of that transmission...
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2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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#4478007 - 08/03/17 08:21 AM Re: Miles or Time for 5 speed manual gear lube change [Re: mtlineman]
badtlc Offline


Registered: 06/08/06
Posts: 5138
Loc: KC
change based on shift quality for MTFs.
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#4478367 - 08/03/17 04:33 PM Re: Miles or Time for 5 speed manual gear lube change [Re: mtlineman]
SargeBB Offline


Registered: 06/24/08
Posts: 166
Loc: Texas
'08 Tacoma 5-speed M/T 4x4. Front differential & Transfer Mobil-1 75W-90, Rear end Amsoil 75W-110 and Transmission: Redline MT-90 (75W-90).

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#4478373 - 08/03/17 04:38 PM Re: Miles or Time for 5 speed manual gear lube change [Re: mtlineman]
SargeBB Offline


Registered: 06/24/08
Posts: 166
Loc: Texas
I didn't answer the question: Changed differential fluids, transmission & transfer all at 15,000 & again at 90K. 15K rear end fluid was nasty, front end certainly ready for a change, trans. & transfer fluids looked new. All 4 components' fluids looked fine at 90,000, but were changed anyway.

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