What gear oil do I use? STi differences by year

Well I was asked to start this, not 100% done or correct. Just adding as I go. Please correct my mistakes :tup:

AMSOIL reccomends:

2002-03 WRX EJ205 Turbo
Maximum Performance SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASLQT)Performance Plus XL 5W-30 Synthetic Motor Oil (XLFQT)
Performance OE 5W30 Synthetic Motor Oil (OEFQT)
Above -4 F......10W-30, 10W-40
Above 95 F......30, 40, 10W-50, 20W-40, 20W-50 [1]
Below 104 F......5W-30 [2]
[1] Above 35 C (95 F) refers to warm climates or HD operation.
[2] SAE 5W-30 is preferred.
Manual Transmission,TY754 (5-SPD)......GL-5
All TEMPS......75W-90
Differential, Rear......GL-5
All TEMPS......80W-90
CAPACITIES:
Engine, with filter..........4.8 quarts [1]
Cooling System, Initial Fill..........7.9 quarts
AMSOIL Antifreeze and Engine Coolant
Automatic Transmission, TV1A4 Initial Fill..........Not Specified [2]
Automatic Transmission, Total Fill
4 speed TV1A4..........7.1 quarts
Manual Transmission, TY754 (5-SPD)..........7.4 pints
Differential, Front..........2.5 pints [3]
Differential, Rear..........1.7 pints [4]
[1] After refill check oil level.
[2] Measure quantity drained and refill with same amount
[3] Front final drive is for automatic transmission only.
[4] Rear differential is for 4WD models only.
TORQUES:
Manual Transmission
Drain Plug 30-35 ft/lbs

2004-05 STi EJ257 Turbo
Maximum Performance SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASLQT)Performance Plus XL 5W-30 Synthetic Motor Oil (XLFQT)
Performance OE 5W30 Synthetic Motor Oil (OEFQT) Above -4 F......10W-30, 10W-40
Above 95 F......30, 40, 10W-50, 20W-40, 20W-50 [1]
All TEMPS......5W-30 [2]
Manual Transmission,TY856 (6-SPD)......GL-5
All TEMPS......75W-90
Differential, Rear WRX STi......GLS [3]
All TEMPS......SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
CAPACITIES:
Engine, WRX-STi, with filter..........4.8 quarts [1]
Cooling System, Initial Fill..........8.1 quarts
AMSOIL Antifreeze and Engine Coolant
Manual Transmission, TY856 (6-SPD)..........8.7 pints
Differential, Front..........2.5 pints [2]
Differential, WRX STi Rear..........1.9 pints [3]
[1] After refill check oil level.
[2] Front final drive is for automatic transmission only.
[3] Rear differential is for 4WD models only.
TORQUES:
Oil Drain Plug.....33 ft/lbs
Manual Transmission 6-SPD [1]
Drain Plug 51.6 ft/lbs
Manual Transmission 6-SPD [2]
Drain Plug 32.5 ft/lbs
[1] Drain plug at clutch housing side
[2] Drain plug at oil pan side

2006-07 STi EJ257 Turbo
Maximum Performance SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASLQT)Performance Plus XL 5W-30 Synthetic Motor Oil (XLFQT)
Performance OE 5W30 Synthetic Motor Oil (OEFQT)
Above -4 F......10W-30, 10W-40
All TEMPS......5W-30 [1]
Manual Transmission,TY856 (6-SPD)......GL-5
All TEMPS......75W-90
Differential, Rear WRX STi......GLS [3]
All TEMPS......SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
CAPACITIES:
Engine, with filter..........4.5 quarts [1]
Cooling System, Initial Fill..........8.1 quarts
AMSOIL Antifreeze and Engine Coolant
Manual Transmission, TY856 (6-SPD)..........8.7 pints
Differential, Front..........2.5 pints [2]
Differential, WRX STi Rear..........2.1 pints [3]
[1] After refill check oil level.
[2] Front final drive is for automatic transmission only.
[3] Rear differential is for 4WD models only.
TORQUES:
Oil Drain Plug.....32.5 ft/lbs
Manual Transmission 6-SPD [1]
Drain Plug 51.6 ft/lbs
Manual Transmission 6-SPD [2]
Drain Plug 32.5 ft/lbs
Manual Transmission 5-SPD Copper
Drain Plug 50.6 ft/lbs
Manual Transmission 5-SPD Aluminum
Drain Plug 32.5 ft/lbs
[1] Drain plug at clutch housing side
[2] Drain plug at oil pan side

2008 STi EJ257 Turbo
Maximum Performance SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASLQT)
Performance Plus XL 5W-30 Synthetic Motor Oil (XLFQT)
Performance OE 5W30 Synthetic Motor Oil (OEFQT)
Above -4 F......10W-30, 10W-40, 10W-50
All TEMPS......5W-30 [1]
Manual Transmission,TY856 (6-SPD)......GL-5
All TEMPS......75W-90 SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
Differential, Rear......GL-5
All TEMPS......75W-90 SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
CAPACITIES:
Engine, with filter..........4.5 quarts [1]
Cooling System, AT Initial Fill..........7.8 quarts
AMSOIL Antifreeze and Engine Coolant
Cooling System, MT Initial Fill..........7.9 quarts
AMSOIL Antifreeze and Engine Coolant
Manual Transmission, TY856 (6-SPD)..........8.7 pints
Differential, Rear..........2.1 pints
Differential, Front..........2.5 pints
[1] After refill check oil level.
TORQUES:
Oil Drain Plug.....33 ft/lbs
Manual Transmission 6-SPD [1]
Drain Plug 51.6 ft/lbs
Manual Transmission 6-SPD [2]
Drain Plug 32.5 ft/lbs
Manual Transmission 6-SPD
Fill Plug 36.9 ft/lbs
[1] Drain plug at clutch housing side
[2] Drain plug at oil pan side

2009 STi EJ257 Turbo
Maximum Performance SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASLQT)
Performance Plus XL 5W-30 Synthetic Motor Oil (XLFQT)
Performance OE 5W30 Synthetic Motor Oil (OEFQT)
Above -4 F......10W-30, 10W-40, 10W-50
All TEMPS......5W-30 [1]
Manual Transmission,TY856 (6-SPD)......GL-5
All TEMPS......75W-90 SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
Differential, Rear......GL-5
All TEMPS......75W-90 SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
CAPACITIES:
Engine, with filter..........4.2 quarts [1]
Cooling System, AT Initial Fill..........7.3 quarts
AMSOIL Antifreeze and Engine Coolant
Cooling System, MT Initial Fill..........7.3 quarts
AMSOIL Antifreeze and Engine Coolant
Manual Transmission, TY856 (6-SPD)..........8.7 pints
Differential, Front..........2.5 pints [2]
Differential, Rear..........2.1 pints
[1] After refill check oil level.
[2] Front final drive is for automatic transmission only.
TORQUES:
Oil Drain Plug.....33 ft/lbs
Manual Transmission 6-SPD [1]
Drain Plug 52 ft/lbs
Manual Transmission 6-SPD [2]
Drain Plug 37 ft/lbs
[1] Drain plug at clutch housing side
[2] Drain plug at oil pan side

2010 STi EJ257 Turbo
Maximum Performance SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASLQT)
Performance Plus XL 5W-30 Synthetic Motor Oil (XLFQT)
Performance OE 5W30 Synthetic Motor Oil (OEFQT)
Above -4 F......10W-30, 10W-40, 10W-50
All TEMPS......5W-30, 5W-40 [1]
Manual Transmission,TY856 (6-SPD)......GL-5
All TEMPS......75W-90 SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
Differential, Rear......GL-5
All TEMPS......75W-90 SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
CAPACITIES:
Engine, with filter..........4.2 quarts [1]
Cooling System, AT Initial Fill..........7.8 quarts
AMSOIL Antifreeze and Engine Coolant
Cooling System, MT Initial Fill..........7.9 quarts
AMSOIL Antifreeze and Engine Coolant
Automatic Transmission, TZ1B8 Initial Fill..........Not Specified [2]
Automatic Transmission, Total Fill
4 speed TZ1B8..........10.4 quarts
Manual Transmission, TY856 (6-SPD)..........8.7 pints
Differential, Front..........2.7 pints [3]
Differential, Rear..........1.7 pints
Differential, STI Rear..........2.1 pints
[1] After refill check oil level.
[2] Measure quantity drained and refill with same amount
[3] Front final drive is for automatic transmission only.
TORQUES:
Oil Drain Plug.....31 ft/lbs
Manual Transmission Metal
Drain Plug 51 ft/lbs

2011 STi EJ257 Turbo
Maximum Performance SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASLQT)
Performance Plus XL 5W-30 Synthetic Motor Oil (XLFQT)
Performance OE 5W30 Synthetic Motor Oil (OEFQT)
All TEMPS......5W-30
Manual Transmission,TY856 (6-SPD)......GL-5
All TEMPS......75W-90 SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
Differential, Rear......GL-5
All TEMPS......75W-90 SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
CAPACITIES:
Engine, with filter..........4.4 quarts [1]
Cooling System, AT Initial Fill..........7.1 quarts
AMSOIL Antifreeze and Engine Coolant
Cooling System, MT Initial Fill..........7.2 quarts
AMSOIL Antifreeze and Engine Coolant
Cooling System, STI-S, STI, SE Initial Fill..........8.1 quarts
AMSOIL Antifreeze and Engine Coolant
Cooling System, WRX-S, WRX Initial Fill..........7.8 quarts
AMSOIL Antifreeze and Engine Coolant
Manual Transmission, TY856 (6-SPD)..........8.7 pints
Differential, Front..........2.5 pints [2]
Differential, Rear..........2.5 pints
Differential, STI Rear..........2.1 pints
[1] After refill check oil level.
[2] Front final drive is for automatic transmission only.
TORQUES:
Oil Drain Plug.....32.5 ft/lbs [1]
Manual Transmission Aluminum Gasket [2]
Drain Plug 51.6 ft/lbs
Manual Transmission Copper Gasket [3]
Drain Plug 32.5 ft/lbs
[1] Install a new washer on the drain bolt.
[2] Drain plug at clutch housing side
[3] Drain plug at oil pan side

2012 STi EJ257 Turbo
Maximum Performance SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASLQT)
Performance Plus XL 5W-30 Synthetic Motor Oil (XLFQT)
Performance OE 5W30 Synthetic Motor Oil (OEFQT)
All TEMPS......5W-30
Manual Transmission,TY856 (6-SPD)......GL-5
All TEMPS......75W-90
Differential, Rear STI......GL-5
All TEMPS......75W-90 SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
CAPACITIES:
Engine, with filter..........4.5 quarts [1]
Cooling System, STI Initial Fill..........8.1 quarts
AMSOIL Antifreeze and Engine Coolant
Manual Transmission, TY856 (6-SPD)..........8.7 pints
Differential, Front..........2.5 pints
Differential, STI Rear..........2.1 pints
[1] After refill check oil level.
TORQUES:
Oil Drain Plug.....32.5 ft/lbs [1]
Manual Transmission Aluminum Gasket [2]
Drain Plug 51.6 ft/lbs
Manual Transmission Copper Gasket [3]
Drain Plug 32.5 ft/lbs
[1] Install a new washer on the drain bolt.
[2] Drain plug at clutch housing side
[3] Drain plug at oil pan side

2013 STi EJ257 Turbo
Maximum Performance SAE 5W-30 Signature Series 100% Synthetic Motor Oil (ASLQT)
Performance Plus XL 5W-30 Synthetic Motor Oil (XLFQT)
Performance OE 5W30 Synthetic Motor Oil (OEFQT)
All TEMPS......5W-30
Manual Transmission,TY856 (6-SPD)......GL-5
All TEMPS......75W-90
Differential, Rear......GL-5
All TEMPS......75W-90
CAPACITIES:
Engine, with filter..........4.5 quarts [1]
Cooling System, STI Initial Fill..........8.1 quarts
AMSOIL Antifreeze and Engine Coolant
Manual Transmission, TY856 (6-SPD)..........8.7 pints
Differential, Rear..........2.1 pints
[1] After refill check oil level.
TORQUES:
Oil Drain Plug.....32.5 ft/lbs [1]
Manual Transmission
Fill Plug 37 ft/lbs
Manual Transmission [2]
Drain Plug 51.6 ft/lbs
Manual Transmission [3]
Drain Plug 37.0 ft/lbs
[1] Install a new washer on the drain bolt.
[2] Drain plug at clutch housing side
[3] Drain plug at oil pan side

There is NO recommendation for the 2014 STi models on AMSOIL's site at this time. Thank you!

Front Differentials:

02-07 WRX: open
04 STi: SureTrac LSD
05-07 STi: Helical LSD
08 STi Helical LSD
09 STi Helical LSD
10 STi Helical LSD
11 STi Helical LSD
12 STi Helical LSD

Center Differentials:
02-07 WRX: Viscous coupling type
02-05 has a 1.1:1 gear ratio
06-07 has a 1:1:1 gear ratio
04-14 STi: DCCD (Driver Controlled Center Differential)
04-05 has a 1:1 gear ratio
06-07 has a 1.1:1 gear ratio
08+ STi

Rear Differentials: R160, R180
R160 – 52lbs. WRX rear differential. It has a viscous LSD which is just no better than an open differential since the unit is so tiny in this diff.
02-05 3.54 gear ratio
06-07 3.54 gear ratio
R160’s on 2.2L Legacy/Impreza’s have a 3.90 gear ratio
R180 – 64lbs. STi rear differential.
04-05 R180’s have Clutch type LSD
06 R180’s have a Clutch type LSD
07 R180's have a Torsion LSD
08 R180's have a Torsion LSD
09 R180's have a Torsion LSD
10 R180's have a Torsion LSD
11 R180's have a Torsion LSD
12 R180's have a Torsion LSD

USDM Impreza WRX STi models: Gear Ratio's

2004-2006 STi 6 speed manual
1st - 3.636
2nd - 2.375
3rd - 1.761
4th - 1.346
5th - 0.971
6th - 0.756
reverse - 3.545
final drive ratio - 3.90

2007 STi 6 speed manual
1st: 3.636
2nd: 2.235
3rd: 1.521
4th:1.137
5th:0.971
6th: 0.756
reverse - 3.545
final drive ratio - 3.90

2008 STi 6 speed manual
1st 3.636
2nd 2.235
3rd 1.521
4th, 1.137
5th 0.097
6th 0.756
Front final gear ratio: 3.9
Rear final gear ratio: 3.545

2009 STI 6 speed manual
1st 3.636
2nd 2.235
3rd 1.521
4th, 1.137
5th 0.097
6th 0.756
Front final gear ratio: 3.9
Rear final gear ratio: 3.545

2010 STI 6 speed manual
1st 3.636
2nd 2.235
3rd 1.521
4th, 1.137
5th 0.971
6th 0.756
Front final gear ratio: 3.9
Rear final gear ratio: 3.545

JDM 2002-2004/2005 STi: Gear Ratio's

2002 JDM WRX
1st - 3.166
2nd - 1.882
3rd - 1.296
4th - 0.972
5th - 0.738
reverse - 3.333
Final drive ratio - 4.444

2004 JDM Sti 6 speed:
1st - 3.636
2nd - 2.375
3rd - 1.761
4th - 1.346
5th - 1.062
6th - 0.842
Final - 3.900

2005 JDM Sti 6 speed:
1st - 3.636
2nd - 2.375
3rd - 1.761
4th - 1.346
5th - 1.062
6th - 0.842
Final - 3.900

2006 JDM Sti 6 speed
1st - 3.636
2nd - 2.375
3rd - 1.761
4th - 1.346
5th - 1.062
6th - 0.842
Final - 3.900

Updated: 2/14/14
still more to add. anyone with information please post and I'll update #1st post :tup:
I'll need to add more when I get home, I'll be very busy this week. I'm thinking about adding what capacity/specs fluid each year uses, as well as the torque specs of each.
Updated: 2/25/14 Added AMSOIL's recommendations, along with Capacities and Torque specs of each. 2014 STi's and up do not have any information on AMSOIL's site.
 

Grinder34

Track Monkey
I'm 98% sure that the 07 does NOT use a clutch type diff, but has a torsen diff.
 

Alin

Diehard Car Enthusiast!
The tranny fluid and rear diff fluids are listed in pints... That was confusing me. (Thanks Amsoil...)

What I have found out is the following:
Transmission fluid capacity: 4.3 qt
Rear differential fluid capacity: 1qt

Those were for the 2004 STi. I'm not sure on the other ones, but I will do a little bit of digging up. Someone else please confirm that this is indeed true.

I was using http://ken-gilbert.com/wrx/STi_Manual/index.htm for the tranny fluid, but for the diff fluid, the page doesn't exist anymore. I looked at a few other sources and majority of them were stating 1qt or just around 1qt.
 
Im not to sure, hopefully someone can chime in, on Amsoil's site, STi 6MT uses 8.7 pints, front diff uses 2.5, rear diff uses 1.9 pints, 13.1 pints is 6.55 quarts
 

Alin

Diehard Car Enthusiast!
Front diff is for the automatic turbod cars. Like the 04-05 auto wrx.

So 8.7+1.9 for sti models
 

IGOTASTi

System Operator
Staff member
Was just Googling this question and this tread came up, lol.
 

Alin

Diehard Car Enthusiast!
So 4.3 qt front and 1 qt rear then?
 
yes sir, id get an extra though, just for safe keeping's. so total for a tranny and rear diff flush for an 04 sti is 5.35 quarts so 6, id order 7 ;)
 

IGOTASTi

System Operator
Staff member
4.5 Qt for trans?

Changing it now.
 
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