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ruturaj001 · 07-06-2023, 03:29 AM

75W90 has been extensively used on 1st gen, while 2nd gen, with minor difference in transmission, as per the manual, requires MT-LV (75W) oil. I looked at all the options redline offers and decided to make a list with relevant numbers

Vis @ 100°C, CSt Vis @ 40°C, CSt
MT-LV 70W/75W 6.5 29.8
MTL 75W80 10.4 50.8
MT-85 75W85 12 62
MT-90 75W90 15.5 82

I am on stock fluid, I assume it's 75W only. I am planning to try 75W80 next time then keep going to next one at every change till I find it's not to my liking or I am on MT-90. 75W80 seems like significant improvement over 75W, just looking at numbers.

07-06-2023, 03:29 AM	#1
ruturaj001 Senior Member Join Date: Aug 2022 Drives: BRZ 2023 Location: Washington Posts: 297 Thanks: 247 Thanked 111 Times in 84 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Redline MT gear oil options 75W90 has been extensively used on 1st gen, while 2nd gen, with minor difference in transmission, as per the manual, requires MT-LV (75W) oil. I looked at all the options redline offers and decided to make a list with relevant numbers Vis @ 100°C, CSt Vis @ 40°C, CSt MT-LV 70W/75W 6.5 29.8 MTL 75W80 10.4 50.8 MT-85 75W85 12 62 MT-90 75W90 15.5 82 I am on stock fluid, I assume it's 75W only. I am planning to try 75W80 next time then keep going to next one at every change till I find it's not to my liking or I am on MT-90. 75W80 seems like significant improvement over 75W, just looking at numbers.