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Old 05-06-2006, 07:29 PM   #1
FD777
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Crystal Gray

Default Oil Analysis - Mobil1 10w-30 - 4000 miles - 2005 Subaru WRX 2.0L Turbo

Original post can be found on BITOG here .

Good results with this oil. Used the Subaru OEM filter (Tokyo Roki - 15208AA100).

Onto the nitty gritty:
I drive the car moderately. I ALWAYS let her warm-up. ~3k RPM shifts when the she's cold and ~4k RPM shifts when she's warm. The car see's redline more than enough
Car averages two 7-mile city trips on weekdays and 30-50 mile highway trips on the weekends.

I'm trying out GC (German Castrol) now, so we'll see how it goes.

Code:
EQUIPMENT MAKE: Subaru			OIL USE INTERVAL: 4,000 Miles
EQUIPMENT MODEL: 2.0L Turbo		OIL TYPE & GRADE: Mobil 1 10W/30 (Gas)
FUEL TYPE: Gasoline (Unleaded)		MAKE-UP OIL ADDED: 0.5 qts
 
These 2.0L Subarus are nice wearing types and yours is not the exception. Universal
averages show typical wear metals for an oil from this type engine after about 4,745 miles run on the
oil. Your oil was in use just short of those miles, and we found wear generally at better than average
levels and in the correct balance to show normal mechanical parts. Air and oil filtration appear normal.
This was 10W/30 engine oil with no gas moisture or anti-freeze in it. The TBN for this oil was 4.7, still
plenty high. Try 5,000 miles for the next sample. Wear will stay normal.
 
 
ELEMENTS IN PARTS PER MILLION (PPM)
 
MI/HR ON OIL	4,000		Universal Averages
MI/HR ON UNIT	15,000
SAMPLE DATE	04/08/06
 
ALUMINIUM	2		3
CHROMIUM	1		1
IRON		4		8
COPPER		7		4
LEAD		2		5
TIN		0		1
MOLYBDENUM	67		79
NICKEL		0		0
MANGANESE	0		1
SILVER		0		0
TITANIUM	0		0
POTASSIUM	0		1
BORON		35		85
SILICON		9		8
SODIUM		4		6
CALCIUM		2171		2486
MAGNESIUM	11		114
PHOSPHORUS	601		745
ZINC		713		888
BARIUM		0		0
 
 
		cST		SUS		VISCOSITY	cST		SUS		FLASHPOINT	FUEL%	ANTIFREEZE%	WATER%	INSOLUBLES%
		VISCOSITY	VISCOSITY	INDEX		VISCOSITY	VISCOSITY	IN F
		@ 40 C		@ 100 F			@ 100 C	@ 210 F
 
VALUES										59-68		>365		<2.0	0		<0.1	<0.6
SHOULD BE
 
TESTED										61.4		370		<0.5	0.0		0.0	0.3
VALUES WERE
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Old 05-07-2006, 02:02 AM   #2
v8eaterWRX
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Default

I assume this is for the full syn? You didnt say, so I want to clarify Glad I have been using it
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Old 05-07-2006, 04:18 AM   #3
FD777
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Quote:
Originally Posted by v8eaterWRX
I assume this is for the full syn? You didnt say, so I want to clarify Glad I have been using it
Yep! Mobil1 full Synthetic - not the extended performance stuff (which is still synthetic).
Just FYI, anything called Mobil1 is synthetic and plain Mobil is dino And I don't think Mobil has any blends...
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Old 05-07-2006, 11:23 AM   #4
z&cobb
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blue

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Was there any comment on the copper?
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Old 05-08-2006, 09:34 AM   #5
bluesubie
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Default

Nice report, although it should be for such a short interval.

Your car is breaking in really well! When did you switch to synthetic? GC going in next? Don't bother with a UOA before 6k miles, IMO. Currently going with a 7,500 mi. OCI on my FXT. Silicon is good. Are you running an OEM air filter?

v8eaterwrx - Don't assume this oil will have similar results in your car, especially in AZ in a modified WRX. Get an analysis!

-Dennis

Last edited by bluesubie; 05-08-2006 at 09:40 AM.
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Old 05-08-2006, 04:49 PM   #6
FD777
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Crystal Gray

Default

Quote:
Originally Posted by z&cobb
Was there any comment on the copper?
Nope, I posted every detail from my report. Hopefully it's just left-over from my previous oil. (See below)

Quote:
Originally Posted by bluesubie
Nice report, although it should be for such a short interval.

Your car is breaking in really well! When did you switch to synthetic? GC going in next? Don't bother with a UOA before 6k miles, IMO. Currently going with a 7,500 mi. OCI on my FXT. Silicon is good. Are you running an OEM air filter?
I'll give you the full details . Given in the mileage when I changed the oil:
2.5k - 5w-30 Chevron - Dino (Done at dealership and 1st oil change)
5k - 5w-30 Castrol GTX - Dino
8k - 5w-30 Castrol GTX - Dino
11k - 10w-30 Mobil1 - Synthetic
15k - 0w-30 Castrol Syntec (a.k.a. German Castrol) - Synthetic

Running OEM air filter. Used OEM oil filter everytime.

The GC is in now, I'll change it in 4k just to get a fair comparison with Mobil1. But I am confident to take it beyond that . The UOA results will tell me for sure.
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Old 05-09-2006, 09:16 AM   #7
bluesubie
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Quote:
Originally Posted by FD777
I'll give you the full details . Given in the mileage when I changed the oil:
2.5k - 5w-30 Chevron - Dino (Done at dealership and 1st oil change)
5k - 5w-30 Castrol GTX - Dino
8k - 5w-30 Castrol GTX - Dino
11k - 10w-30 Mobil1 - Synthetic
15k - 0w-30 Castrol Syntec (a.k.a. German Castrol) - Synthetic

Running OEM air filter. Used OEM oil filter everytime.
No synthetic until after 10k and OEM air and oil filters. The results speak for themselves.

-Dennis
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Old 05-10-2006, 02:47 PM   #8
mossie4
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Question

Ok, stupid question from Montana. Have never once had an Engine oil analysis done. Who exactly provides this analysis?

Just switched to Mobil 1 at 46K and would like to see what condition the oil is on its way out!

Yes, yes... a newb question!
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Old 05-10-2006, 02:53 PM   #9
Skeete
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Old 05-10-2006, 03:03 PM   #10
Kean
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http://www.blackstone-labs.com/

EDIT: didn't see the above response. .....sorry.
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Old 05-10-2006, 04:42 PM   #11
mossie4
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Thanks a bunch, I will look in to it although I now have a few thousand miles before I am due for another change!!
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Old 05-10-2006, 04:54 PM   #12
Kean
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Quote:
Originally Posted by mossie4
Thanks a bunch, I will look in to it although I now have a few thousand miles before I am due for another change!!
....why wait? Have them send you the kit now so you'll have it when you're ready for your next oil change. ....there is no up-front charge.
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Old 05-10-2006, 05:07 PM   #13
mossie4
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Smile

Sweet, just hit their website and will do that immediately. I will get in a couple of Auto-X events over the next couple of weeks and send it in then! It is not a daily driver so it won't be many miles but will still be great to know whats going on in that 4-year old engine.
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Old 05-10-2006, 10:32 PM   #14
bluesubie
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Quote:
Originally Posted by mossie4
Ok, stupid question from Montana. Have never once had an Engine oil analysis done. Who exactly provides this analysis?

Just switched to Mobil 1 at 46K and would like to see what condition the oil is on its way out!

Yes, yes... a newb question!
It's better to ask how to go about getting an oil analysis, than to ask a bunch of nuts like us how long to run an oil in your car.

-Dennis
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