Diff oil service - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Subsonic · 10-14-2018, 11:11 PM

Hi Guys,

My Australian delivered 86GTS requires a diff oil change at 45,000km. The manual gives us two options:

"Toyota Genuine Differential Gear Oil LT" or
"Other LSD gear oil that meets API GL-5 and SAE 75W-85".

Do you think I should put the Toyota stuff in or if not, what is a good alternative?

No complaints with how the diff is working with the factory fill, just looking for alternatives from those who may have some experience.

Subsonic.

Mr.ac · 10-15-2018, 12:30 AM

Chose whatever gear oil you want. Or what ever your wallet says.
I for one used mobile 1 gear oil, just because it's available at any auto parts store and it's cheap compared to oem gear oil and saves me a 30 minute drive to the dealership.

And if you don't like it, it's simple to drain and fill with whatever oil you chose.

Ultramaroon · 10-15-2018, 12:57 AM

Use any equivalent. I used Castrol in mine. It's right as rain. Zero noise and the Torsen bites like new.

Avoid using the combo GL-4/GL-5 stuff.

ZZT86 · 10-16-2018, 09:38 PM

Quote:

Originally Posted by Ultramaroon

Avoid using the combo GL-4/GL-5 stuff.

mmm, why do you say that ? I've been using Gear 300 for years, seems fine I think.

alan.chalkley · 10-16-2018, 09:50 PM

Dealership oil and service are very expensive.
The only reason i keep going back , is to keep my 6 year warranty.

Ultramaroon · 10-17-2018, 12:32 AM

Quote:

Originally Posted by ZZT86

mmm, why do you say that ? I've been using Gear 300 for years, seems fine I think.

Additives in dual rated lubes are "good enough" to provide GL-5-ish protection without corroding soft metal, but not as good as an actual GL-5 lube.

I suggest that, unless one is concerned about minimizing inventory, there's no reason to choose in-between stuff over the good stuff. Use GL-4 in the transmission, GL-5 in the diff, and call it a day.

86MLR · 10-17-2018, 02:05 AM

Penrite Pro Gear GL-5 75W-85 in mine

So far no kittens, or gears have been killed.

$25 Ltr at Stupercheap

ZZT86 · 10-17-2018, 08:06 AM

^ Sweet, Penrite ProGear looks a good oil that matches the Toyota LX spec - full synth too

10-14-2018, 11:11 PM	#1
Subsonic Member Join Date: Dec 2016 Drives: Toyota 86 GTS Location: Sydney Australia Posts: 76 Thanks: 77 Thanked 114 Times in 36 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Diff oil service Hi Guys, My Australian delivered 86GTS requires a diff oil change at 45,000km. The manual gives us two options: "Toyota Genuine Differential Gear Oil LT" or "Other LSD gear oil that meets API GL-5 and SAE 75W-85". Do you think I should put the Toyota stuff in or if not, what is a good alternative? No complaints with how the diff is working with the factory fill, just looking for alternatives from those who may have some experience. Subsonic.

10-15-2018, 12:30 AM	#2
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,369 Thanks: 709 Thanked 1,558 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	Chose whatever gear oil you want. Or what ever your wallet says. I for one used mobile 1 gear oil, just because it's available at any auto parts store and it's cheap compared to oem gear oil and saves me a 30 minute drive to the dealership. And if you don't like it, it's simple to drain and fill with whatever oil you chose. __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

10-15-2018, 12:57 AM	#3
Ultramaroon 義理チョコ Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 31,867 Thanks: 52,126 Thanked 36,517 Times in 18,919 Posts Mentioned: 1106 Post(s) Tagged: 9 Thread(s)	Use any equivalent. I used Castrol in mine. It's right as rain. Zero noise and the Torsen bites like new. Avoid using the combo GL-4/GL-5 stuff. __________________ service manuals

10-17-2018, 02:05 AM	#7
86MLR Senior Member Join Date: Aug 2018 Drives: 2002 VX Commodore SS LS1 Auto Location: Sydney Posts: 2,203 Thanks: 500 Thanked 2,185 Times in 1,111 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	Penrite Pro Gear GL-5 75W-85 in mine So far no kittens, or gears have been killed. $25 Ltr at Stupercheap __________________ Disclaimer: This post represents the official views of the voices in my head at the time of posting. http://www.ft86club.com/forums/showthread.php?t=133311 I'm only here for the biscuits

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10-16-2018, 09:50 PM	#5
alan.chalkley Senior Member Join Date: Feb 2012 Drives: 4wd zooks Location: Sydney / Australia Posts: 495 Thanks: 135 Thanked 167 Times in 108 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Dealership oil and service are very expensive. The only reason i keep going back , is to keep my 6 year warranty.

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