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#1771304 - 02/06/10 05:12 PM Amsoil's MTG or Redline's MT-90?
MrWideTires Offline


Registered: 05/18/09
Posts: 610
Loc: Sarasota, FL
I have two questions for you guys...

#1: How often do you change manual transmission fluid?

#2: Amsoil's MTG or Redline's MT90?

Now please keep in my mind this SpecV requires GL-4, and it can NOT be GL-5. This car gets autocrossed, drag raced, off-roaded, and driven really aggresively.. it's my toy. I don't know much about tranny fluid so I wanna hear it drive
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2015 Subaru WRX STI

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#1771315 - 02/06/10 05:26 PM Re: Amsoil's MTG or Redline's MT-90? [Re: MrWideTires]
BovineScapegoat Offline


Registered: 11/06/09
Posts: 240
Loc: Southern Ontario
I use the MT-90.
_________________________
05 Mazda3 2.0 Castrol Edge 5W30 + Motorcraft FL910S
Redline MT-90, Filtermag, Shark Fin Antenna
07 Focus 2.0 any dino 5W30 + Motorcraft

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#1771329 - 02/06/10 05:35 PM Re: Amsoil's MTG or Redline's MT-90? [Re: BovineScapegoat]
simple_gifts Offline


Registered: 07/26/04
Posts: 10035
Loc: Middlesex County CT
#1 30-50K
#2 flip a coin. I have used an MT90/MTL mix in my !echo! and see no reasons to look elsewhere.

edit:Redline does not recommend extending OM drain intervals for gear lubes due to the contamination factor.


Edited by simple_gifts (02/06/10 05:39 PM)
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2003 Echo >371K miles; ST 20w-50 and some #132
2006 B2300;97K;ALM

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#1771351 - 02/06/10 05:51 PM Re: Amsoil's MTG or Redline's MT-90? [Re: BovineScapegoat]
Gary Allan Offline


Registered: 09/28/02
Posts: 39806
Loc: Pottstown, PA
If you're flogging it, you will probably do an annual fluid change. Try one ..then try the other. You decide what delivers the best performance.
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#1771367 - 02/06/10 06:06 PM Re: Amsoil's MTG or Redline's MT-90? [Re: Gary Allan]
The Critic Offline


Registered: 08/30/04
Posts: 18383
Loc: Walnut Creek, CA
I would try Amsoil, only because I trust their R&D more than Redline.

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#1771376 - 02/06/10 06:10 PM Re: Amsoil's MTG or Redline's MT-90? [Re: The Critic]
cos Offline


Registered: 11/21/04
Posts: 1149
Loc: Metro Detroit
As Gary said - try both and see which one you like the best. You can't go wrong with either one, they are both outstanding products.
_________________________
'06 Ford Fusion 2.3/manual
QSUD 5W20
Amsoil MTF/MTG


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#1771381 - 02/06/10 06:13 PM Re: Amsoil's MTG or Redline's MT-90? [Re: cos]
Kiwi_ME Offline


Registered: 10/24/08
Posts: 901
Loc: New Zealand
1. 10,000 miles
2. MT-90

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#1771411 - 02/06/10 06:37 PM Re: Amsoil's MTG or Redline's MT-90? [Re: Kiwi_ME]
hate2work Offline


Registered: 09/04/08
Posts: 4617
Loc: Western Washington

1) For you, change it annually.

2) MTG
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#1771435 - 02/06/10 06:51 PM Re: Amsoil's MTG or Redline's MT-90? [Re: hate2work]
brandini Offline


Registered: 10/08/09
Posts: 1147
Loc: Richmond, VA
If you suggest something, back it up with a reason!

I'd say Amsoil, because if the awesome warranty :-)
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07 Mazda3s Hatch - ZoomZoom - Using EAO-ALM-BF3-MTG-ANT-ATF

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#1771507 - 02/06/10 07:35 PM Re: Amsoil's MTG or Redline's MT-90? [Re: brandini]
pidster Offline


Registered: 12/11/06
Posts: 548
Loc: ontario canada
I use the MT90/MTL mix as well. Best, smoothest shifting and quieting of gear whine of anything I've tried. Never tried Amsoil though, so cant say it's better than that.

I change every 2-3 years, thats 50-100,000km.
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All Motorcraft Filters
Current fill: Mobil 1 0w40 with Lubro Moly MoS2

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#1771631 - 02/06/10 09:39 PM Re: Amsoil's MTG or Redline's MT-90? [Re: pidster]
wantin150 Offline


Registered: 02/27/06
Posts: 1899
Loc: Columbia, SC
I change mine every 25k. 2003 Toyota Matrix XRS 6 speed. Tried Amsoil SVG which was a mistake on my part. Tried the MTG. Didn't like it. Went to 100% MT90. Haven't looked back. I now run a blend of MT90 and MTL (2/1).

SVG - Transmission HATED it, even though the tranny is rated for GL4 or GL5. Swapped after 5k.

MTG - Better but still had hard shifting when temps below 40F or so.

MT90 - Better than the MTG. Developed a 3 gear issue in temps below 60F. It's the syncros but...

MT90/MTL mix - Helped the 3rd gear issue. Still there but not as bad. Once warm, it shifts VERY smooth.
_________________________
2003 Toyota Matrix XRS 87,000 miles
2008 Scion xD 14,500 miles
2007 Yamaha YZF600r 8,400 miles

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#1771658 - 02/06/10 10:08 PM Re: Amsoil's MTG or Redline's MT-90? [Re: The Critic]
Ben99GT Offline


Registered: 02/25/05
Posts: 4311
Loc: MS
Originally Posted By: The Critic
I would try Amsoil, only because I trust their R&D more than Redline.


Why?
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2001 F150 Supercrew
1991 Mustang LX notch
1999 Mustang GT


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#1771742 - 02/06/10 11:33 PM Re: Amsoil's MTG or Redline's MT-90? [Re: Ben99GT]
unDummy Offline


Registered: 02/01/03
Posts: 8756
Loc: RI
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Your automaker lied!
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#1771836 - 02/07/10 02:30 AM Re: Amsoil's MTG or Redline's MT-90? [Re: unDummy]
cos Offline


Registered: 11/21/04
Posts: 1149
Loc: Metro Detroit
Where is the Pennzoil sold?
_________________________
'06 Ford Fusion 2.3/manual
QSUD 5W20
Amsoil MTF/MTG


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#1772366 - 02/07/10 12:39 PM Re: Amsoil's MTG or Redline's MT-90? [Re: cos]
mechtech2 Offline


Registered: 09/05/06
Posts: 19479
Loc: Chicago Area
Try either one. If you don't like how it shifts, dump it in 6 months.
30-50,000 miles should be a good change interval.

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