Gearbox oil: Redline MTL vs. Rdline MT-90? - Toyota Yaris Forums

gordanfish · 05-30-2011, 08:51 AM

Hey guys,

I appreciate all the great info on this website. I am currently considering changing my gearbox oil on my 2001 Yaris 1.0. I read on another website the following, and was wondring if you guys had an opinion on which might be better for my older Yaris? Thoughts? Comments? Opinions?

"Redline gear oil is friction-modified to give better synchro engagement and so should give a useful improvement in change quality. For your car you should use Redline MTL (as opposed to MT). It am not a great fan of using Dexron ATF in gearboxes - it has a lower viscosity than the 75W-90 but is more "slippery" and will give a slower synchro lock-up. If you want to use an ATF then you should use a 'Type A Suffix A' oil like Mobil ATF200, Castrol Agri-ATF or Elf Trans-O-Matic. - these will provide better synchro action.

Other good gear oils include Castrol SMS-X and Motul 75W-90 - both of these will give a fast gearchange. SMS-X is particularly good in cold weather since it has a lower viscosity coefficient.

MTL is a good place to start though and costs about £10 a quart - try it and let us know...."

ecc_33 · 05-30-2011, 09:59 AM

I used royal purple this time and its just ok. I have Redline MT-90 on the shelf waiting the next oil change :D

jambo101 · 05-30-2011, 11:26 AM

Over here in N.America we only got the Yaris in 2006 and it only comes with a 1.5l engine. that said RedLine products are very good but i'd go with a G-4 synthetic lube for the tranny as some synthetic oils can be actually too slippery for the synchros to engage properly at high rpm.s and may result in a bit of grinding if the shift is too quick.

gordanfish · 05-31-2011, 10:49 AM

Thanks, guys. Forgive me for being somewhat of a dolt, but I was under the impression that RedLine MT-90 was a synthetic G-4 lube; is that not correct? Sorry for my ignorance!

Hershey · 05-31-2011, 11:15 AM

Yes, GL-4 and 75w90 . Go here for more details . http://www.redlineoil.com/product.aspx?pid=46&pcid=7 . Does miracles for shifting ( cold , grinding , etc. ) and no clunking when putting it in reverse . Takes a little time to get the full benefit .

05-30-2011, 08:51 AM	#1
gordanfish Drives: Toyota Yaris 2001 Join Date: May 2011 Location: Aberdeen, UK Posts: 2	Gearbox oil: Redline MTL vs. Rdline MT-90? Hey guys, I appreciate all the great info on this website. I am currently considering changing my gearbox oil on my 2001 Yaris 1.0. I read on another website the following, and was wondring if you guys had an opinion on which might be better for my older Yaris? Thoughts? Comments? Opinions? "Redline gear oil is friction-modified to give better synchro engagement and so should give a useful improvement in change quality. For your car you should use Redline MTL (as opposed to MT). It am not a great fan of using Dexron ATF in gearboxes - it has a lower viscosity than the 75W-90 but is more "slippery" and will give a slower synchro lock-up. If you want to use an ATF then you should use a 'Type A Suffix A' oil like Mobil ATF200, Castrol Agri-ATF or Elf Trans-O-Matic. - these will provide better synchro action. Other good gear oils include Castrol SMS-X and Motul 75W-90 - both of these will give a fast gearchange. SMS-X is particularly good in cold weather since it has a lower viscosity coefficient. MTL is a good place to start though and costs about £10 a quart - try it and let us know...."

05-30-2011, 09:59 AM	#2
ecc_33 Drives: 2008 toyota yaris Join Date: Mar 2011 Location: OHIO Posts: 55	I used royal purple this time and its just ok. I have Redline MT-90 on the shelf waiting the next oil change :D __________________ 08 toyota yaris with some big tires lol 02 chevy duramax that runs 11.63 at 116 mph in the 1/4 mile

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05-30-2011, 11:26 AM	#3
jambo101 Drives: yaris 08 sedan Join Date: Oct 2008 Location: Montreal Canada Posts: 1,286	Over here in N.America we only got the Yaris in 2006 and it only comes with a 1.5l engine. that said RedLine products are very good but i'd go with a G-4 synthetic lube for the tranny as some synthetic oils can be actually too slippery for the synchros to engage properly at high rpm.s and may result in a bit of grinding if the shift is too quick.

05-31-2011, 10:49 AM	#4
gordanfish Drives: Toyota Yaris 2001 Join Date: May 2011 Location: Aberdeen, UK Posts: 2	Thanks, guys. Forgive me for being somewhat of a dolt, but I was under the impression that RedLine MT-90 was a synthetic G-4 lube; is that not correct? Sorry for my ignorance!

05-31-2011, 11:15 AM	#5
Hershey Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009 Location: northeast Posts: 2,897	Yes, GL-4 and 75w90 . Go here for more details . http://www.redlineoil.com/product.aspx?pid=46&pcid=7 . Does miracles for shifting ( cold , grinding , etc. ) and no clunking when putting it in reverse . Takes a little time to get the full benefit .