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Old 02-25-2002, 01:01 PM   #1
codemunky
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Join Date: Jul 2000
Chapter/Region: SCIC
Location: Irvine
Default What grade oil do you all use?

20W-50 too much? What's the ideal? Also planning on switching to synthetic. Thanks.
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Old 02-25-2002, 01:08 PM   #2
Julian
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Oil weight is mostly dictated by climate you'll be driving in, as colder or hotter like different weights. Irvine is pretty temperate, no special use needs; Subaru spec'ed oil weight should be just fine.
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Old 02-25-2002, 06:08 PM   #3
ANZAC_1915
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I'd say 10W30 for California. If you live anywhere that gets a little cold then use 5W30. I use 5W30 year round in Seattle.

Glenn
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Old 02-26-2002, 03:11 PM   #4
krave
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Mobil 1 Synthetic 5w30 for cold weather (what im using now)
switching to 10w30 as it's gonna start getting warm in Texas.
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Old 02-26-2002, 03:51 PM   #5
Richard L.
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'93 GMC Typhoon AWD

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Mobil 1 Tri-Synthetic 5W-30 year round up here in WA. To me, 20W-50 is too thick, even for California.
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Old 02-27-2002, 09:21 AM   #6
Orion
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I've been using Castrol GTX 10w-30, but I will be making a switch to Motul 300 V 5w-40.
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Old 03-04-2002, 08:09 PM   #7
jlevy
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Amsoil 5W-30 at first oil change.
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Old 03-06-2002, 11:33 AM   #8
Narcisse91
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Royal Purple 10W-30. Knocking when the engine's cold, beautiful when it's warm.
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Old 03-11-2002, 10:30 PM   #9
subbyspeed
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Mobil 1 Synthetic 5W-30 is what i use. Always have since the first oil change. I love it..
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Old 03-12-2002, 12:14 AM   #10
grubaru
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Mobil 1 5w-30 year round in the flat state of Delaware.
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Old 03-12-2002, 01:40 AM   #11
Eric SS
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swap and N20. gone. : (

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Winter :Mobil 1 10w-40

Summer Mobil 1 15w-50

Eric
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Old 03-12-2002, 09:10 AM   #12
Jon Bogert
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Winter: Mobil 1 0W40
Summer: Motul 300V 5W40
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Old 03-12-2002, 09:50 AM   #13
jlyttle
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Where do you guys find all those differnt weights? I am using Mobil1 10-30, but would love a 10w40...
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Old 03-12-2002, 10:01 AM   #14
Jon Bogert
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In Mobil's case, their heating oil distributors are often their local wholesalers for motor oil, too. I got the 0W40 (which Pep Boys/Kmart/Wal-mart don't carry) from the local heating oil guy. There's a finder on Mobil's web site.

Motul is much harder to find, and if you've ever been in touch with their U.S. office, you'll know why. They're a little... slow.
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Old 03-12-2002, 10:30 AM   #15
jlyttle
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mobil1 is fine for me, just grabbed a 5qt jug of 10w30 for $17.88...I have gas, so I won't be trailing any oil trucks! Thanks.
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Old 03-13-2002, 11:26 PM   #16
subarurabbit
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going to start running Amsoil 10w-30 year round with their SDF20 filter. Currently running their xl-7500 5w-30 and Subaru filter.

Roger
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Old 03-15-2002, 10:50 PM   #17
neurotic
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Amsoil synthetic 0w30 all year
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Old 03-16-2002, 03:11 PM   #18
krave
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5w30 mobil 1 synthetic for the winter, 10w30 during the summer.
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Old 03-17-2002, 01:37 PM   #19
variac
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Castrol GTX 10W-30 year round in Florida. Engine quieter on this grade compared to the factory grade.
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Old 03-19-2002, 03:46 PM   #20
speedrkj
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Mobil One 10w30 year round no problems so far....
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Old 03-24-2002, 06:16 AM   #21
outback2.5HO
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Vavoline synthetic 5w-40
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Old 04-16-2002, 10:11 PM   #22
HomeSlice
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castrol 5w-30
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Old 04-17-2002, 12:29 AM   #23
hobun2
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Winter : Mobil 1, 5W30

Spring and Autumn : Mobil 1, 10W30

Summer : Mobil 1, 15W50
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Old 04-17-2002, 01:19 PM   #24
en3d
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Mobil 1 syn 10w30 year round
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