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Old 06-02-2006, 12:16 PM   #51
CrooklineWRX
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Default Subaru dealer saying NO synthetic?

More fuel for the oil fire... just dropped my 06 WRX at Cityside Subaru in Belmont, MA for a suspension issue and the first question the check-in guy asked me was if I had changed my oil yet? (Presumably trying to sell me an oil change.) My car has 3,500 miles on it and I told him, yes, I changed the oil at 1,000 miles. He asked what kind of oil and I told him it was Valvoline Synthetic 5W-30. He said unequivocally "you cannot use synethic oil in a WRX... it is too thin."

I am confused... from everything I have read here and on linked pages, synthetic of the correct viscosity actually withstands pressure and viscosity breakdown better than dino oil? Am I missing a new service guidance from Subaru or something? Anyone else have this experience?
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Old 06-02-2006, 12:52 PM   #52
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You are experiencing what's known as "the people who work at my dealership are dumasses". Synthetic is discussed in your owners manual and it's 100% fine. As to being too thin....5W30 is 5W30 is 5W30 as they are all tested by the API to be the proper weight. While some may thin out later, to blanket say that one is too thin without oil analysis to back this up is pure lunacy. Maybe you are lucky enough to have a real tribologist working at your dealership though.
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Old 06-02-2006, 05:51 PM   #53
CrooklineWRX
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Quote:
Originally Posted by Unabomber
Maybe you are lucky enough to have a real tribologist working at your dealership though.
Well that explains the lab coat

Yeah... I'm going to stick with synth since the overwhelming body of evidence supports it. Thanks for all the research.
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Old 06-03-2006, 01:49 AM   #54
Alan
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On the other hand there is some pretty good experience that changing to synthetic oil before 5-10K miles may be too soon to properly get the engine fully broken in for best performance and gas mileage. I intend to switch to synthetic at around 7K miles, 1K seems way too soon.
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Old 11-02-2006, 03:43 AM   #55
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fwiw, LE ISN'T synthetic. if it was their HDEO 40wt would be a 10W40 or 5W40, not a 15W40.
They also make no mention of synthetic on their site. good dino oil though...it's red and red's fast

For a turbo car look for ACEA A3/B3, A4/B4, A3/B3/B4 oils. Or HDEO's meant for diesels; Delvac, Delo, Rotella, etc. In freezing cold winters a 30wt might work ok, but I wouldn't use anything thinner than GC 0W30.

N/A will be happy with ACEA A1/B1, A5/B5, A1/B1/B5 oils.
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Old 11-02-2006, 07:57 PM   #56
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You like to split hairs don't you? It's technically a blend, but since it's about 9000% better than most 100% synthetics, I took the "liberty" of calling it a synthetic.
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Old 11-07-2006, 05:09 AM   #57
gtx510
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afaik, LE is a DINO OIL. I guessing probably Group II+.
They also make no mention of being a "blend".
No way is it a synthetic, that "arguement" applies to Group III oils...

no, I just prefer CORRECT information over falsehoods and speculation.
Ask LE, I've always heard that they say it AIN'T synthetic. (And the shop I used to work at sold LE)
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Old 11-07-2006, 10:32 AM   #58
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well, i stand corrected
LE is a blend since their Monolec additive is synthetic. Shows what my old boss knew...
So it's an expensive blend... but that's better than the expensive dino oil that I thought it was.
It's good oil with lotsa additives, but I wouldn't pay $7-8/qt for it. What's this stuff cost these days? It used to be about $5/qt but the price went up and I can't find prices on the net.


"better" is difficult to quanitify.
less engine wear? more power? smoother running? longer lasting?
then compare to Amsoil, Motul, Redline, Schaeffer, etc..
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Old 03-26-2007, 01:58 PM   #59
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Default Oil change intervals

The Editor-In-Chief where I work (Edmunds.com) just posted this today:
http://blogs.edmunds.com/karl/465

I've been changing oil at 3,750-mile intervals with Mobil 1 5w-30. I believe commuting on the Santa Monica freeway every weekday and some "spirited driving" would fall under "severe driving conditions." I also go to open track days about twice a year.

Am I being wasteful?

Thanks in advance!

God bless,
Loren
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Old 03-26-2007, 02:27 PM   #60
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The only way to really know is to do a used oil analysis. . With M1 5W30 in your conditions and location, you're probably not going to want to go past 3,750 unless you have a good analysis.

Oh, and don't run 5W30 (or 10W30) in the summer at the track unless you want a "qualifying oil".

-Dennis
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Old 03-26-2007, 05:33 PM   #61
wrx222
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Anyone know the Oil Capacity for a 1995 Impreza L Wagon (EJ18)?
Just bought one the other night, no manual.

Thanks
Dave
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Old 03-26-2007, 10:28 PM   #62
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Quote:
Originally Posted by wrx222 View Post
Anyone know the Oil Capacity for a 1995 Impreza L Wagon (EJ18)?
Just bought one the other night, no manual.

Thanks
Dave
Subaru.com and mysubaru.com

Last edited by bluesubie; 03-27-2007 at 08:41 AM. Reason: added link
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Old 03-27-2007, 10:34 PM   #63
wrx222
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Quote:
Originally Posted by bluesubie View Post

Thanks for the links, Subaru.com tells me how often I should change my oil and how to protect the vehicle's finish, mysubaru.com I can't log into cause I didn't buy the car from a dealer.
I appreciate the effort, but does anyone know the oil capacity for the ej18?
I'm thinking somewhere around 4qts, just want to be sure.

Thanks Again,
Dave
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Old 03-28-2007, 01:15 PM   #64
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Quote:
Originally Posted by wrx222 View Post
mysubaru.com I can't log into cause I didn't buy the car from a dealer.
Not even with the VIN? I did a google and found this. Looks like 4.2 qts.
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Old 03-29-2007, 08:39 AM   #65
wrx222
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Quote:
Originally Posted by bluesubie View Post
Not even with the VIN? I did a google and found this. Looks like 4.2 qts.
Thanks
That's funny I googled a bunch of different things and couldn't find it, oh well, I appreciate the info.
The guy who owned the car before me apparently thought it took about 7qts
I had to run for a second oil pan before my 6qt one overflowed

Dave
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Old 03-29-2007, 10:11 PM   #66
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Wait, what? There were 7 qts. in the engine? That's not good; that much extra oil could have damaged something (can't remember exactly what ... )
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Old 05-30-2007, 06:54 PM   #67
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Awesome FAQ, thank you!
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Old 06-26-2007, 09:56 PM   #68
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This is my first ever post to a forum - kinda intimidating! Lots of info on oil!! Just wondering - what weight/grade of oil do the Subaru rally pros use?
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Old 06-26-2007, 10:28 PM   #69
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Well, the Subaru World Rally Team uses Motul 300V 5W40. Whether or not it's in an actual rally car, I don't know.

-Dennis
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Old 06-26-2007, 11:09 PM   #70
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Thanks for the reply, Dennis Unless I'm mistaken, Subaru recommends 5W-30 oil for all Imprezas, turbo and non-turbo. Any reason why I couldn't use a 10W-30 or even 10W-40 in my Sti?
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Old 06-27-2007, 10:13 AM   #71
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Looky at the owner's manual and don't go only by what's on the oil cap. Otherwise, your driving privileges may be suspended by nasioc. Anyway, here's a start; 5W30 is preferred for full economy.

-Dennis
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Old 06-28-2007, 11:24 PM   #72
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Dennis, how about use of 10W50 M1 on stage 4 WRX?
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Old 12-10-2007, 12:24 PM   #73
Drake13
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Excellent FAQ!
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Old 12-10-2007, 01:48 PM   #74
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i drive a 2006 rex and lives in singapore. Here, we see avg temp of 30 deg C or higher. Then, what kinda oil do u guys think its suitable considering the tropical climate? In addition, im in for a 20k service, wanted to do a engine flush(not "treatment" kind but sort of a machine that recirculates a solution throughout the engine) just before i change turbo but was told it does more harm then good to the engine. Lastly, back to the oil... 300v seems to be a popular choice and im running 10w40 with 5k intervals
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Old 12-26-2007, 02:38 PM   #75
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Random fact for those changing their own oil:
Baby powder is your friend when you get oil splatter on your clothes. Add a pile of the stuff on any spots and let it sit overnight. In the morning, remove excess and wash as usual. Repeat as needed. Oil gone!
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