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View Poll Results: Oil Consumption Poll:
Changed to synthetic immediately after break in-*DOES NOT EXCESSIVELY BURN OIL* 27 42.86%
Changed to synthetic after reccomended 10,000 miles (+/- couple k)-*DOES NOT EXCESSIVELY BURN OIL* 20 31.75%
Changed to synthetic immediately after break in-*BURNS OIL EXCESSIVELY* 8 12.70%
Changed to synthetic after reccomended 10,000 miles (+/- couple k)-*BURNS OIL EXCESSIVELY* 8 12.70%
Changed to conventional after break in and still burned oil excessively 0 0%
Voters: 63. You may not vote on this poll

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Old 01-07-2005, 08:48 PM   #1
STi/AE86
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Default Synthetics and burning oil

I've been scouring forums for a couple days now and have not found a satisfactory answer. (Not in FAQs or past threads or anything.) So it's time to compile some information. I have a few polls in mind but here is the first: (I'm doing this because I'm at 1950 on break in and don't really like having the oil in my STi.)

Please post your poll answer, personal experience, year of WRX (or STi) and the weight and brand of oil you used, and/or using.

Also, (correct me if I'm wrong) I believe "excessive use" of oil would be defined as a 40% of a quart or more per 3,000 mile interval when driven hard periodically. Anything under I suppose would not be excessive.

Thank you.
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Last edited by STi/AE86; 01-07-2005 at 09:00 PM.
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Old 01-07-2005, 09:30 PM   #2
Uncle Scotty
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....oh boy.....

...here it comes....
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Old 01-08-2005, 12:05 AM   #3
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I can see where your thoughts are going. Subaru and most auto manufacturers don't care about consumption unless it's 1 qt/1000 miles. No amount of data with convince them otherwise and if everyone responded to this poll, you would see a whole gamut of answers. If you are unhappy with your oil consumption, switch to a thicker oil or sell your car. There are really no two ways around this issue.
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Old 01-08-2005, 12:17 AM   #4
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.....

I think this post was misunderstood. My Subaru is not burning oil, nor am I under the false assumption that any kind of internet petition would make a corporation such as Fuji Heavy Industries admit a fudge up. (If there even is one.) That's not to say if a problem exists you can even place the blame on Subaru, when it's probably due to oil type and/or the way it's used. The Subaru water boxer is well known for it's engine longevity and slow wear.

I'm just asking for information, pure and simple. And it seems that rather than debating over two or three subjective anecdotes, we as enthusiasts would be closer towards a better understanding of the issue if we compiled information.

If your Subaru burns oil, post up on the poll, if it doesn't, post up on the poll too. If you don't feel like posting background or anything that's fine as well. Thanks for reading this post if you decide to and even more if you decide to participate. Pretty simple.
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Old 01-08-2005, 12:24 AM   #5
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I switched to mobil 1 ss at 6500 miles and have not burned a drop since. I have 8000 miles on the XT now. Before the mobil 1 I only had to add about a half quart until the next oil change.

Take the break in oil out...I couldn't wait till 3000 and when I drained it at 2000 it looked like black sludge (i know color has nothing to do with its ability to lube the motor blah blah blah) I didn't want it in my engine!
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Old 01-08-2005, 12:41 AM   #6
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Thank you for your expanded offering. Us "old salts" get a bit tired of people bearing their crosses and I mistakenly took you for one of "those types". See what I get for pre-judging?

For myself, my stats don't fit on your poll as my car has a mind of it's own. It started out as a zero oil burner. Then went to 1 qt/oil change. Now it's back to a zero oil burner. :shrug:
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Old 01-08-2005, 04:51 AM   #7
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Where is use conventional oil and no oil usage between oil changes?
Your poll results may end up being a bit misleading.

I have 30,000 km on my 04 WRX and have had no oil issues - and I drive it like it is a stolen rental car...
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Old 01-08-2005, 01:12 PM   #8
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My TS burns certain oils profusely, others not at all. With Mobil 1 5-30 (at around 20,000 miles), a known thin burner of an oil, I lost over a quart on a 1200 mile freeway trip in the summer at 85mph with the air conditioning on high.

Castrol StartUp didn't burn a drop over 5000 miles. Niether has German Castrol Synthetic 0-30 over 4000 so far. I drive canyons to work, so I flog it hard, lots of redlining. I'll stick with the CG 0-30 for a total of 5000, then go 6000 next change and have it analyzed.
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Old 01-08-2005, 01:16 PM   #9
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Where is the option for broke it in with synthetic kept it with syn and doesnt burn any oil?
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Old 01-08-2005, 06:16 PM   #10
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There is more of a case for individual cases too,

Broke in for 1000, ran aggressively on that oil for 2000 more. Changed oil and filter at 3000 to mobil 1 5w-30 and started a series of modifications, ending at TXS stg 3 Utec for 93+ octane.

Currently at 77,000 miles. Never showed oil loss between any 3000 to 3000+ mile oil and filter changes.
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Old 01-08-2005, 07:24 PM   #11
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After 6 Subarus since 1995, I haven't had any that have used/burnt/consumed oil.

YeaaaaY!
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Old 01-08-2005, 09:17 PM   #12
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Quote:
Originally Posted by Canuck007
Where is use conventional oil and no oil usage between oil changes?
Your poll results may end up being a bit misleading.

I have 30,000 km on my 04 WRX and have had no oil issues - and I drive it like it is a stolen rental car...
I don't mean for my poll results to be misleading, here's my reasoning for not posting "always used conventional oil and does not burn oil."

I suspect that it is not a problem with the engine or design but a problem with oil compatibility, if the engine is fine then you definitely will not burn oil if you've got low miles and a moderate/fast driver and always use conventional.

I guess if you did burn A LOT of oil under those controls then you might have a lemon, but I'm not interested in lemons, I'm interested in how different synthetic and conventional oils perform in the STi and WRX, and hope to use this poll (as it grows) to be some place to weed out the obviously dangerous and unhealthy engine oils (if in fact there are any) for the sake of all Subaru owners.
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Old 01-08-2005, 09:20 PM   #13
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And poll results look pretty good so far, as I expected, with +80% having switched immediately after break in and not having any oil burning problems.

As more people post in the poll pehaps we will dispell a couple myths more or less as well eh?

Thanks to everyone for their invovlement!
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Old 01-10-2005, 07:21 PM   #14
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My car burns oil off the exhaust b/c my valve covers are leaking. I should/will fix it sometime in the near future.

-Charles-
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Old 01-19-2005, 09:14 AM   #15
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WIth royal purple 5w-30 I will burn a quart between oil changes. If I am driving such as I was in the Tsuami charity rally this past weekend were speeds in excess of 120 mph are ran a few times I will but through an extra quart rather quickly.
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Old 01-19-2005, 11:00 AM   #16
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On Mobil1 I used a quart every 1000 or so. Switched to Castrol Syntech and now it uses a quart every 3500.
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Old 01-19-2005, 11:10 AM   #17
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Redline 5W30... switched to synth. at 10,000 miles.

I burn 1 quart every 3,000 miles. Since I change oil every 6,000, I go through two quarts between fluid changes.

I don't consider this consumption excessive or unacceptable.
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Old 01-19-2005, 12:10 PM   #18
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I'm just about 1 quart/1000 mi. Was on Mobil 1 5w30 last year....switched to 10w30 later in the year, now on Castrol Syntec 10w30 and only a little better. Car runs great though otherwise. Changed to syn after 10k miles. Now at 59k.
I'm guessing it's cuz 75% is city driving and my foot has a problem w/lead in it When I had Mobil change my oil once...the mechanic said that Subie's are notorious for burning oil. I guess I am continuing the tradition Maybe I'll try the Castrol 0w30 like above.

No cure for the lead unfortunately...maybe another 10 years will cure it
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Old 01-19-2005, 12:43 PM   #19
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The original owner switched to redline 5w30 at first oil change...33K miles later no burning

I recently checked the oil at 1600 miles after most recent change (xmas), and it was still full
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