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Old 08-17-2003, 05:04 PM   #1
LESLIEx317537
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Arrow My first oil change on STi. Expieriences.

Today I did my first oil change at 1100 miles.

When I looked under the car, I thought I'd see the drain bolt but it was hidden under the plastic sheild, so I took that off.

I then saw the oil filter and drain bolt easily accessable. I then unscrewed the drain plug and changed the filter.
What I noticed was it had no crush washer on it stock.

I put the crush washer I bought from my subaru parts place on and screwed it back in and so far no leaks.

I put 5 quarts of Mobil 1 Synthetic.

Is 5 quarts too much? I was slightly past the second dot on the oil dipstick.
Also, was I missing a washer or did it fall into the oil catch pan and I missed it?
Also when should I do my next oil change? 4000 miles?
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Old 08-17-2003, 05:31 PM   #2
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Default Re: My first oil change on STi. Expieriences.

Quote:
Originally posted by LESLIEx317537
Today I did my first oil change at 1100 miles.

When I looked under the car, I thought I'd see the drain bolt but it was hidden under the plastic sheild, so I took that off.

I then saw the oil filter and drain bolt easily accessable. I then unscrewed the drain plug and changed the filter.
What I noticed was it had no crush washer on it stock.

I put the crush washer I bought from my subaru parts place on and screwed it back in and so far no leaks.

I put 5 quarts of Mobil 1 Synthetic.

Is 5 quarts too much? I was slightly past the second dot on the oil dipstick.
Also, was I missing a washer or did it fall into the oil catch pan and I missed it?
Also when should I do my next oil change? 4000 miles?
no synthetic oil for the first 9000 miles
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Old 08-17-2003, 05:35 PM   #3
amdmaxx
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why not? Is it better to have a thinner regular oil?
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Old 08-17-2003, 05:37 PM   #4
LESLIEx317537
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What, are you serious?

I can flush it, but I paid 23 buks for 6 quarts... Do I have too?

Someone tell me, if SYn is ok to run at 1000 miles...
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Old 08-17-2003, 05:41 PM   #5
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Default yes, why not?

Mercedes Benz cars are now shipped from factory with Synthetic oil, what makes the STi different.

Any thoughts?
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Old 08-17-2003, 05:43 PM   #6
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i'm planning on doing my first change at 1k miles w/ mobile 1 regular and then switching to mobil 1 synthetic at 3k.
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Old 08-17-2003, 05:43 PM   #7
mr2guru
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Synth is fine at 1k....Once your rings are seated it is fine and your rings usually seat within the first 50mi or sooner. Don't flush it you will just be wasting your money.
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Old 08-17-2003, 05:45 PM   #8
LESLIEx317537
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OK thanks.

Now was 5 quarts too much?
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Old 08-17-2003, 05:48 PM   #9
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I changed to synth at 1500 miles
and check your manual for the right amount of oil..

for the 2.0L WRX its 4.8

you do not want to overfill, otherwise you can froth the oil.
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Old 08-17-2003, 05:52 PM   #10
LESLIEx317537
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I looked and couldn't find it.

I heard other people using 5 quarts.

I put 4 in and looked at the stick and it was at the bottom dot. So once I put the 5th in, it was slightly past the second dot.
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Old 08-17-2003, 05:54 PM   #11
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I am betting you have two crush washers...when I changed mine the first time I almost missed the washer, it was painted black and it "crushed" very neatly into the top of the bolt...
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Old 08-17-2003, 05:57 PM   #12
LESLIEx317537
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I tried prying what looked like a crush washer off.

I didn't budge and I didn't want to force it off and scrap the nut.

What should I do now? I guess I'll just keep a eye on my garage floor for some oil leakage.

I inspected after for leaks and saw none....

How did you pry yours off?
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Old 08-17-2003, 05:58 PM   #13
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Old 08-17-2003, 06:02 PM   #14
LESLIEx317537
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"You can start using Mobil 1 with SuperSyn™ in new vehicles at any time, even in brand-new vehicles. In fact, Mobil 1 with SuperSyn™ is original equipment (it is installed at the factory) in:


Chevrolet Corvette
All Porsche vehicles
Mercedes-Benz AMG vehicles
Dodge Viper
Ford Mustang Cobra R
All Aston Martin cars

One of the myths that persists about Mobil 1 is that new engines require a break-in period with conventional oil. Current engine manufacturing technology does not require this break-in period. As indicated by the decisions of the engineers who design these high-performance cars, Mobil 1 with SuperSyn™ can be used in an engine from the day you drive the car off the showroom floor. "

Quoted from above site...

Now I feel alot better about that. But what about me having two crush washers? I want only one.
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Old 08-17-2003, 06:10 PM   #15
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Just opinion - Many different engineers use different metalurgy when they design different engines. Some use hard brittle metals that have very tight tolerances, and can use synthetic after a short engine break in. Others, like the horizontally aligned Mazda rotory, are designed with softer metals and seals that need more time to seat properly. I don't have any clue how the STi block is designed.

Is it safer to use mineral oil for a longer duration, than to use synthetic too soon?
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Old 08-17-2003, 06:43 PM   #16
Zoso
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How often are you planing to change the oil now that you are using synthetic?
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Old 08-17-2003, 06:46 PM   #17
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I donno. Every 3500 miles?
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Old 08-17-2003, 06:52 PM   #18
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Quote:
Originally posted by LESLIEx317537
Chevrolet Corvette
All Porsche vehicles
Mercedes-Benz AMG vehicles
Dodge Viper
Ford Mustang Cobra R
All Aston Martin cars

Mitsubishi Evo
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Old 08-17-2003, 07:21 PM   #19
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Quote:
Originally posted by LESLIEx317537
I donno. Every 3500 miles?
Take a look at this thread:
http://forums.nasioc.com/forums/show...hreadid=398611

Before you start wasting your time, money and our natural resources you should consider submiting a sample of next oil change for oil analysis. This will help you come up w/ a much more reasonable oil change interval along being able to identify problems with the motor before they become a problem. It's a really inexpensive service and they will send you the sample collection kits for free and you just drop it in the mail and get a report emailed back.

I personaly would start with 3,500 to 5,000 miles between oil changes and work my way up depending on the results of the oil analysis.

edit: I know some vehicle have a washer built into the drain plug. I've always seen replacable crush washer on Subaru's. I'd keep an eye for leaks from the drain plug.
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Old 08-17-2003, 07:29 PM   #20
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Quote:
Originally posted by STi&LT1
I am betting you have two crush washers...when I changed mine the first time I almost missed the washer, it was painted black and it "crushed" very neatly into the top of the bolt...
Ditto. I used a knife to saw around the edge between the washer and the bolt and then the washer popped off. I wouldn't have seen it if I didn't know it was there.
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Old 08-17-2003, 07:31 PM   #21
LESLIEx317537
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I think since I bought Synthetic, I'm going to change the oil and filter every 5000 miles and keep a eye on the oil and level.

I will feel the oil and see how it is after a while.

I'll just do the changes at 1000, 5000, 10,000, 15,000, 20,000 etc...with Mobil 1 Synthetic.
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Old 08-17-2003, 07:34 PM   #22
LESLIEx317537
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I'm going to take off both the crush washers at my 5000 mile oil change.

I'll just keep a eye on the floor till then. I garage my car, so I can tell definetly if it starts leaking.

I'll also take off the plastic sheild next weekend and inspect the bolt.
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Old 08-17-2003, 08:10 PM   #23
markpaco
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when I changed my oil it took about 4.8 qts and I believe that is what the manual states too. Surprisingly, I was able to remove the OEM filter with my bare hand. Usually they are on way too tight.
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Old 08-17-2003, 08:27 PM   #24
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Default Re: Re: My first oil change on STi. Expieriences.

Quote:
Originally posted by NO3 CRZ
no synthetic oil for the first 9000 miles
What is the source of this information?
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Old 08-17-2003, 08:28 PM   #25
SubEd
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Default Re: Re: Re: My first oil change on STi. Expieriences.

Quote:
Originally posted by spool1536


What is the source of this misinformation?
Fixed it for ya!
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