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Go Back   IWSTI.com: Subaru WRX STI Forums > IWSTI Engine & Drivetrain > 2.5 Liter/Litre Factory Motor
What oil are you running--Summer? What oil are you running--Summer?


View Poll Results: What oil are you running? What weight of that brand? (mult. choice)
Amsoil 15 15.46%
Mobil 34 35.05%
Castrol 18 18.56%
Quakerstate 1 1.03%
Redline 3 3.09%
Royal Purple 17 17.53%
Motul 6 6.19%
Valvoline 2 2.06%
Lucas 1 1.03%
Generic (dealer, lube shop) 4 4.12%
0W-30 6 6.19%
0W-40 2 2.06%
5W-30 42 43.30%
5W-40 6 6.19%
10-30 12 12.37%
10-40 7 7.22%
20W-50/Heavy Racing Oil (single wt or heavier that 20W-50) 3 3.09%
Multiple Choice Poll. Voters: 97. You may not vote on this poll

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Old 06-27-2006, 05:53 PM   #1
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Default What oil are you running--Summer?
Oil Brand:
Synth/Conventional/Blend:
Weight:
Driving Condition:
Weather Condition:
Comments:



I know there are a lot of Amsoil and Mobil fans here. I'm pretty new to oil, but i've heard it can make a big difference to the performace/longevity of our motors. I just wanted to gather some information specific to STIs. I'm tired of the stealerships charging me $100 to adjust tire pressures and inspect things that I can inspect myself and then leaving the oil cap on top of the engine, so I've resolved to change the oil myself in my car.

Here is my application: 2006 STI in Canada, winter driven, temperatures as cold as -25 Celcius ambient, very spirited driving, including autoslaloms and the occaisional drag race.


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Old 06-27-2006, 05:56 PM   #2
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mobil 1 syn 5w30
i <3 mobil
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Old 06-27-2006, 05:57 PM   #3
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mobil 1 sythetic 5w30 since 1000 miles, +1 to loving MOBIL 1
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Old 06-27-2006, 05:59 PM   #4
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Quote:
Originally Posted by scubadiver424
mobil 1 sythetic 5w30 since 1000 miles, +1 to loving MOBIL 1
same thing as him
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Old 06-27-2006, 06:03 PM   #5
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no one uses Mobil 1 5w50?
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Old 06-27-2006, 06:11 PM   #6
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Quote:
Originally Posted by STIrentacar
no one uses Mobil 1 5w50?
theres prolly someone out there
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Old 06-27-2006, 06:20 PM   #7
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Quote:
Originally Posted by scubadiver424
mobil 1 sythetic 5w30 since 1000 miles, +1 to loving MOBIL 1
Same thing. Weather conditions is hot and humid down here in Hawaii. So in the cold you might need a different viscosity.
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Old 06-27-2006, 06:21 PM   #8
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Mobile 1 syn 10 w 30.
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Old 06-27-2006, 06:25 PM   #9
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Oil Brand: Amsoil
Synth/Conventional/Blend: Synthetic
Weight: 0W30
Driving Condition: Daily driving
Weather Condition: All
Comments: I've been using Amsoil for about 4 years now with my last car ('01 Prelude) and I redlined it pretty much every day. When I changed my oil at 8600 the last two changes, Blackstone Labs said to push it past 9K. I can't complain with comments like that.
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Old 06-27-2006, 06:26 PM   #10
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mobil syn 10/30 its a must out here with our triple digit weather!
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Old 06-27-2006, 06:31 PM   #11
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i use to run mobil 1 but now i run royal purple 5W30 and its nice about the same as mobil1
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Old 06-27-2006, 06:48 PM   #12
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Castrol GTX 5w30, dino oil.
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Old 06-27-2006, 07:12 PM   #13
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Quote:
Originally Posted by Stee
Castrol GTX 5w30, dino oil.
+1 same here
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Old 06-27-2006, 07:13 PM   #14
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mobil 1, 10w30
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Old 06-27-2006, 07:20 PM   #15
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i've used both mobil 1 5w30 and 10w30 and had no problems.


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