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08-12-2011, 08:30 AM | #1 |
Big Ron
Super Moderator Member#: 18062
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Best oil vs. Worst oil AKA does it really matter?
Car: 2004 Subaru WRX. One owner. Oil changes at 130,000 to 135,000 miles and 135,000 to 140,000 miles.
Worst oil: Walmart Super Tech 5w30 synthetic + Walmart Super Tech filter. Retail cost for parts: $20 Best oil: Bio-Synthetic Super High Performance Motor Oil SAE 5w30 PCMO + OEM Subaru filter. Retail cost for parts: $60 Worst oil change results: Best oil change results: Comparison: Code:
OIL REN5w30 I WST5w30 MILES IN USE 5k I 5k MILES 140k I 135k SAMPLE TAKEN 08/03/2011 I 03/31/11 ALUMINUM 1 I 2 CHROMIUM 0 I 0 IRON 4 I 4 COPPER 3 I 1 LEAD 7 I 1 TIN 0 I 0 MOLYBDENUM 7 I 72 NICKEL 0 I 0 MANGANESE 0 I 0 SILVER 0 I 0 TITANIUM 0 I 0 POTASSIUM 2 I 2 BORON 12 I 124 SILICON 5 I 5 SODIUM 2 1 1 CALCIUM 2234 I 1985 MAGNESIUM 8 I 6 PHOSPHORUS 759 I 633 ZINC 868 I 760 BARIUM 0 I 0 INSOLUBLES 0 I 0 WATER 0 I 0 cSt @ 212ºF 9.5 I 8.6 Oxidation 81 I 10 Nitration 23 I 19 TBN 2.87 I 2.29
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08-12-2011, 08:31 AM | #2 |
Big Ron
Super Moderator Member#: 18062
Join Date: Apr 2002
Chapter/Region:
MAIC
Location: I can save you a ton of cash
Vehicle:on car parts so PM me b4 j00 buy |
For those of you that aren't oil dorks, here is the Cliff Notes:
If you use Wesson Oil or if you use oil made by Jesus himself, it doesn't matter! |
08-12-2011, 12:02 PM | #3 | |
*** Banned ***
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Quote:
100% TOTALLY disagree your test is conclusive to YOU and YOUR vehicle and YOUR driving style and does NOT represent any other. and it isnt a trend analysis....it is a spot sample this makes it invalid as far as many would be concerned Ron....Uncle loves ya....but oil DOES matter. A LOT, it does. |
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08-12-2011, 12:03 PM | #4 |
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08-12-2011, 12:31 PM | #5 |
Big Ron
Super Moderator Member#: 18062
Join Date: Apr 2002
Chapter/Region:
MAIC
Location: I can save you a ton of cash
Vehicle:on car parts so PM me b4 j00 buy |
Dennis told me I should run the "Uncle Scotty has a stroke combo" AKA regular Mobil 1 + orange Fram filter. I might do so just to jab you buddy.
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08-12-2011, 01:18 PM | #6 |
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Oh this is gonna be funny.
For the record, I ran my 02 WRX all the way to 282k HARD EARNED MILES on pretty much nothing but Mobil1 10w30 which I was told for years is "devils spit" in these engines. I'm interested to see some more results. |
08-12-2011, 01:22 PM | #7 |
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I ran M1 5w-30 in my 2.0 WRX without issue but in my 2.5L STi the M1 disappeared between OCIs. When I switched to Rotella T6 5w-40 I quit losing oil. That said, I'm in the camp of it doesn't matter all that much as long as you use an oil with the proper specs and reasonable OCIs.
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08-12-2011, 01:37 PM | #8 |
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08-12-2011, 04:04 PM | #9 |
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you were told or read wrong... 5w-30 is the notorious oil that ranks up there with recycled budweiser. 10w-30 is a different oil, and doesn't shear as badly.
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08-12-2011, 05:05 PM | #10 |
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I did this a couple years back with my 1st wrx with 50K miles. First change was castrol syn blend 5w-30 that the dealer put in when I bought it and the second was Shell rotella 5w-40. Same oil filter and same intervals. The rotella sample turned back superior results. I think I still have the tests somewhere around here and can scan them if anyone wants to see...
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08-12-2011, 05:35 PM | #11 | |
Scooby Guru
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Quote:
What you're seeing in this uoa is a good ester based oil cleaning up the crap in your engine. When Terry Dyson used to post at BITOG, he described the process as scavenging. Dave at Red Line provides similar feedback by email because people sometimes freak out after seeing their first Red Line uoa. -Dennis |
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08-12-2011, 05:45 PM | #12 | ||
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Vehicle:04 FXT 20 OB Onyx XT |
Quote:
Quote:
-Dennis |
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08-12-2011, 05:56 PM | #13 | |
Scooby Guru
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Join Date: Jan 2000
Chapter/Region:
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Vehicle:04 FXT 20 OB Onyx XT |
Quote:
-Dennis |
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08-13-2011, 06:23 PM | #14 |
Scooby Newbie
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I use royal purple and Im at 100k
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08-13-2011, 07:06 PM | #15 |
*** Banned ***
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Join Date: Mar 2002
Vehicle:OK buy Nates beans westcoastroasting.com |
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08-13-2011, 10:52 PM | #16 |
NASIOC Vendor
Member#: 198281
Join Date: Dec 2008
Chapter/Region:
MAIC
Location: Virginia
Vehicle:2005 WRX/STi WRB of course |
Awesome. LOL...
05 STi, 78K (abusive) miles numerous tunes, engine mods, etc. The company's test mule. Spent most of it's life in the low 300whp range and the last 5K in the 360-380whp range. Oil Analysis always come back with excellent results and upon teardown all bearing and wear surfaces have no abnormal wear. No oil added between oil changes. All despite running the "devil's spit" M1 5w-30 BUT oil was changed every 2.5-3k miles. Ran the fancy german castrol and consumed almost a full quart over the OCI. Idle did not seem as smooth (placebo effect?), no change in mpg, and no significant difference in the oil analysis (that I can ramember). IMO, driving style has much more to do with engine wear than anything else. If you drive your car after immediately starting it, get on it before the oil is completely up to temperature and do a lot of stop and go driving you'll have much more wear related issues than someone who lets thier car warm up completely, oil up to temp before boosting it, and mostly highway driving. |
08-13-2011, 11:02 PM | #17 | |
*** Banned ***
Member#: 16200
Join Date: Mar 2002
Vehicle:OK buy Nates beans westcoastroasting.com |
Quote:
and I'd bet that your tune didnt knock either THAT is the REAL issue is the **** pisswater oil and kiddies knocking them all to hell and not changing the oil often enough and changing **** oil every 2500-3000 miles is a waste of all involved |
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08-13-2011, 11:46 PM | #18 |
NASIOC Vendor
Member#: 198281
Join Date: Dec 2008
Chapter/Region:
MAIC
Location: Virginia
Vehicle:2005 WRX/STi WRB of course |
Speculative... You don't know if that's mostly track, dyno, city, highway, etc... So is guessing when your oil is spent. I'll err on the far side of safety, at my expense, to assure excellent oil condition. I don't see anything wrong with that since it's my $$
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08-14-2011, 07:53 AM | #19 | |
*** Banned ***
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Vehicle:OK buy Nates beans westcoastroasting.com |
Quote:
RACE CARS are NOT street cars and people posting about RACE CARS are polluting the minds of the kiddies who are stupid and think that what is good for race cars MUST be good and right for street cars THIS IS THE HEART OF ALL RICE PLEASE do NOT dis service our community by mixing what YOU do with RACE CARS and what John Q. Kiddie needs to do for his street car. This is a HUGE issue that just keeps keepin on and is the BANE of us REAL enthusiasts who get a HUGE black eye by being associated with these total morons who know nothing about cars or real performance other than in their wet dreams, strokin it to a WRC poster If YOU want to be stupid and waste YOUR money on being stupid...go for it but it is unnecessary and wasteful if the proper product is being used in the first place Last edited by Uncle Scotty; 08-14-2011 at 08:22 AM. |
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08-14-2011, 08:51 AM | #20 | |
Scooby Guru
Member#: 767
Join Date: Jan 2000
Chapter/Region:
Tri-State
Location: N.J.
Vehicle:04 FXT 20 OB Onyx XT |
Quote:
Don't try this at home kids! -Dennis |
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08-14-2011, 09:14 AM | #21 | |
NASIOC Vendor
Member#: 198281
Join Date: Dec 2008
Chapter/Region:
MAIC
Location: Virginia
Vehicle:2005 WRX/STi WRB of course |
Quote:
So I'll say it again... car use, driving style, etc. are a significant factor here, in my less than expert opinion. |
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08-16-2011, 06:07 PM | #22 |
Scooby Specialist
Member#: 41070
Join Date: Aug 2003
Location: Arizona
Vehicle:2005 Black Tiger (Black Turbo Baja) |
Una, do you understand enough about this UOA comparison to know where each of the oils is showing strength and weakness? If you do, will you please elaborate for us?
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08-17-2011, 12:06 PM | #23 | |
Scooby Guru
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Quote:
think your getting flack from all the persons that cannot face that they have wasted time(posting about their oil of choice) and money(purchasing their oil of choice.) |
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08-17-2011, 07:50 PM | #24 |
Scooby Specialist
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Join Date: Aug 2003
Location: Arizona
Vehicle:2005 Black Tiger (Black Turbo Baja) |
Far too much empirical evidence showing the contrary over decades now. Fuels can (and do) make a significant, measurable difference in engine cleanliness and efficiency. See BMW's valve cleanliness testing and specifications for just one peek at this.
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08-17-2011, 09:13 PM | #25 |
Scooby Newbie
Member#: 67956
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Location: Mansfield, Ma
Vehicle:2007 WRX Wagon Silver |
Unabomb, do you plan on running the walmart juice exclusively now? If it's just as good why not right? I think I might try it in my plow jeep for ****s and giggles.
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