Rear diff service - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

JoeBoxer · 10-15-2012, 12:44 AM

How many miles are you guys doing your rear end services at? I am thinking of changing it out at my next oil change at 7500 miles. I will probably do it every 15k after that and will be switching to Motul gear oil.

Hanakuso · 10-15-2012, 06:53 PM

I'm also interested in what people will be using to replace the factory fill. I'm thinking of going with Toyota or Subaru but Motul and others are being considered

post_break · 10-15-2012, 06:57 PM

We changed mine with motul at like 1,700 miles. It was nasty.

whitefrs · 10-15-2012, 06:57 PM

i changed mine at 1100

ft86Fan · 10-15-2012, 07:30 PM

Just changed mine at 1800 with Motul.

YourFearlessLeader · 10-15-2012, 07:31 PM

Isnt the factory recommendation 30,000 miles?

JoeBoxer · 10-15-2012, 07:48 PM

Quote:

Originally Posted by YourFearlessLeader

Isnt the factory recommendation 30,000 miles?

Not sure but it's best to get any metal shavings out of the rear end from initial use. I'm surprised how soon everybody else is doing it but it's a cheap and easy service that adds peace of mind especially if you drive the car hard.

GenkiElite · 10-15-2012, 07:55 PM

Quote:

Originally Posted by post_break

We changed mine with motul at like 1,700 miles. It was nasty.

Nasty how exactly? Diff fluid is pretty nasty right out of the bottle. I change my KAAZ 2 way every 2000 miles or after every event because its a clutch type LSD but aren't these viscous? They typically dont need that much maintenance.

so26 · 10-15-2012, 08:21 PM

Anyone place a magnet in the old oil and find any metal filings?

WolfsFang · 10-15-2012, 08:24 PM

Quote:

Originally Posted by so26

Anyone place a magnet in the old oil and find any metal filings?

i think the diff drain plug has a magnet on it.

SXE10 · 10-15-2012, 08:36 PM

Quote:

Originally Posted by GenkiElite

but aren't these viscous? They typically dont need that much maintenance.

They're a TORSEN LSD & yes they're don't require much in the way of maintenance. Just change the oil every 30K miles & they're as happy as Larry.
Redline 75w-85 would be my choice if you want to keep with the OE spec, 75w-90 if you want a bit more bite in the lsd or 80w-140 of you're taking it on the track.

roddy · 10-15-2012, 11:12 PM

Quote:

Originally Posted by WolfsFang

i think the diff drain plug has a magnet on it.

It does. I changed mine at around 1200 miles and the fluid looked good. The magnet on the drain plug was pretty grungy though.

I went with 75W85 as suggested in the owner's manual.

siXXtoes · 10-16-2012, 04:19 AM

ill do mine at 3000 miles with motul

rice_classic · 10-16-2012, 04:12 PM

This:

Because "I drive flatout."

10-15-2012, 12:44 AM	#1
JoeBoxer Senior Member Join Date: Jul 2012 Drives: Whiteout FR-S Location: Arkansas Posts: 4,154 Thanks: 1,666 Thanked 1,627 Times in 997 Posts Mentioned: 72 Post(s) Tagged: 0 Thread(s)	Rear diff service How many miles are you guys doing your rear end services at? I am thinking of changing it out at my next oil change at 7500 miles. I will probably do it every 15k after that and will be switching to Motul gear oil.

10-15-2012, 06:57 PM	#4
whitefrs Love Boost!!!!!!!! Join Date: Jun 2012 Drives: Whiteout Scion FR-S Location: Long Island NY Posts: 3,612 Thanks: 429 Thanked 902 Times in 606 Posts Mentioned: 87 Post(s) Tagged: 3 Thread(s)	i changed mine at 1100 __________________ ༼ つ ◕_◕ ༽つ I LOVE BOOST ༼ つ ◕_◕ ༽つ

10-15-2012, 07:30 PM	#5
ft86Fan Senior Member Join Date: Feb 2010 Drives: FR-S, Exige S, Miata Location: Basking Ridge NJ Posts: 798 Thanks: 327 Thanked 131 Times in 80 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Just changed mine at 1800 with Motul. __________________ '13 Scion FR-S (Whiteout) '07 Lotus Exige S (Aspen White) Touring, Traction, Starshield '95 Miata (Montego Blue)

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10-15-2012, 06:53 PM	#2
Hanakuso Senior Member Join Date: Apr 2012 Drives: FR-S Location: California Posts: 1,956 Thanks: 294 Thanked 673 Times in 390 Posts Mentioned: 11 Post(s) Tagged: 2 Thread(s)	I'm also interested in what people will be using to replace the factory fill. I'm thinking of going with Toyota or Subaru but Motul and others are being considered

10-15-2012, 08:21 PM	#9
so26 Senior Member Join Date: Aug 2012 Drives: Raven FR-S 6MT Location: Garden state Posts: 181 Thanks: 70 Thanked 54 Times in 22 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Anyone place a magnet in the old oil and find any metal filings?

10-16-2012, 04:19 AM	#13
siXXtoes Ohh Snap Join Date: Jun 2012 Drives: Argento FR-S Location: San Diego Posts: 159 Thanks: 79 Thanked 35 Times in 26 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	ill do mine at 3000 miles with motul

10-16-2012, 04:12 PM	#14
rice_classic Senior Member Join Date: Jun 2012 Drives: Nevermorange FRS Location: Seattle, WA Posts: 4,173 Thanks: 757 Thanked 4,208 Times in 1,808 Posts Mentioned: 78 Post(s) Tagged: 1 Thread(s)	This: Because "I drive flatout."

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