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| Scion FR-S / Toyota 86 GT86 General Forum The place to start for the Scion FR-S / Toyota 86 | GT86 |
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08-23-2021, 06:27 PM
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#1 |
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Changing my gearbox fluid. Redline MTL or Redline MT-90 ?
Changing my gearbox fluid.
GL4 Redline MTL or Redline MT-90 ? Spec is Toyota MT Gear Oil Spce.II GL-3 75W-90 Redline MT-90 vs. MTL • MTL is a low 75W, almost a 70W, at very low temperatures and a high 80W, nearly an 85W, at elevated temperatures, providing adequate viscosity to prevent wear and deaden gear noise. • MT-90 is a thicker 75W90 version of MTL. ... MT-90 is a 75W90 GL-4 and also satisfies motor oil viscosities SAE 10W/15W/40. So, should I go with 70W85 or 75W90 ? Easier cold shifting with the lighter MTL? |
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08-24-2021, 04:00 AM
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MT-90.
Tried and tested by many over here. |
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08-24-2021, 11:17 AM
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#3 |
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Purist
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If the car is only a daily, MTL. If you track it, MT90.
Ive been running Pentosin MTF-2 (75w-80) for years now with no issues. So much better in cold weather. I think it might fall short when its REALLY hot out. Like 95F+ and I start driving harder. Also, the new GR86 lowered the gear oil viscosity in the manual transmission. Couldnt tell you what, but I read it on the internet.
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08-24-2021, 11:48 AM
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I just replaced my factory fill at 54k street miles and a few years track duty with MT90. Didn't see any reason to deviate from factory viscosities. Shifting is great so far, a bit better 1-2 vs. heavily used factory fill, see how it goes this Winter but not really worried...
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08-24-2021, 12:31 PM
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#5 |
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Mt-90 is still pretty decent in the cold. I have been using it for quite a while.
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08-24-2021, 12:34 PM
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#6 |
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Off to the track!
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MT-90 is preferred by many in Canada. I've only used it in like 8C (46F) during a fall track day. Not as notchy as stock/OEM fluid or Gear 300.
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