Welcome to the North American Subaru Impreza Owners Club Saturday July 12, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Service & Maintenance

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 05-11-2011, 05:31 PM   #1
DutchOven
Scooby Specialist
 
Member#: 220629
Join Date: Aug 2009
Chapter/Region: SCIC
Vehicle:
2010 WRX Hatchback
Satin White Pearl

Default UOA: Pennzoil Platinum 5w30 on 2010 WRX (cheap & easily obtained oil)

Surprisingly good results. I was skeptical because I've been told that this oil is crap, justifying the very low price. I paid $20 for 5 quarts.

Engine Mileage: 30,831 mi
Oil Use Interval: 3,126 mi

Engine mods to note:
AEM Intake
Perrin Inlet
Turboback, catted exhaust
Professionally tuned to 301whp/314wtq
Stock internals

NO TRACK DAYS


So this oil should be OK to use for daily driving in the spring.
* Registered users of the site do not see these ads.

Last edited by DutchOven; 05-11-2011 at 10:17 PM.
DutchOven is offline   Reply With Quote
Old 05-11-2011, 05:46 PM   #2
JamesWilson2
ForumWars Winner!
 
Member#: 196948
Join Date: Dec 2008
Chapter/Region: TXIC
Location: Kyle, TX
Vehicle:
2003 Forester
Silver

Default

Pennzoil Platinum has always been a great oil, and a good value. Not sure who told you otherwise.
JamesWilson2 is offline   Reply With Quote
Old 05-11-2011, 07:03 PM   #3
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK Houston
we have an Uncle

Default

d0000000000000d


very cheap oil is $1.99/qt
Uncle Scotty is offline   Reply With Quote
Old 05-11-2011, 07:12 PM   #4
DutchOven
Scooby Specialist
 
Member#: 220629
Join Date: Aug 2009
Chapter/Region: SCIC
Vehicle:
2010 WRX Hatchback
Satin White Pearl

Default

Quote:
Originally Posted by Uncle Scotty View Post
d0000000000000d


very cheap oil is $1.99/qt
lol this is cheap for me. All the stuff I've ever used was around $8 /qt or more
DutchOven is offline   Reply With Quote
Old 05-11-2011, 08:00 PM   #5
jddssc121
Scooby Specialist
 
Member#: 253302
Join Date: Jul 2010
Chapter/Region: NWIC
Location: Seattle
Vehicle:
2011 G37x

Default

the good oils set themselves apart @ 5K and beyond (baring a visit to the track where it might degrade sooner).... Any half decent synth oil will make it to 3K

I'd be interested to see the UOA at 5-6K
jddssc121 is offline   Reply With Quote
Old 05-11-2011, 09:31 PM   #6
bluesubie
Scooby Guru
 
Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

Thumbs up

Quote:
Originally Posted by JamesWilson2 View Post
Pennzoil Platinum has always been a great oil, and a good value. Not sure who told you otherwise.
+1. Probably from the same people that say it causes sludge.

There have been some recent Ultra uoa's and they were good as well. Even with a short interval, most Energy Conserving oils do not stay in grade and these latest Platinum and Ultra uoa's are pretty good. Extend your intervals gradually though (if you're thinking about doing that). You could have high fuel dilution, low viscosity and high wear and Blackstone would still tell you to go another 2,000 miles. The protune probably helps as well. An OTS AP map would likely have more fuel dilution.

Nice filtering with the AEM as well! Ok, I've figured it out. This is a virgin oil analysis. Ha ha, the joke's on us.

-Dennis
bluesubie is offline   Reply With Quote
Old 05-11-2011, 10:22 PM   #7
DutchOven
Scooby Specialist
 
Member#: 220629
Join Date: Aug 2009
Chapter/Region: SCIC
Vehicle:
2010 WRX Hatchback
Satin White Pearl

Default

Quote:
Originally Posted by bluesubie View Post
+1. Probably from the same people that say it causes sludge.

There have been some recent Ultra uoa's and they were good as well. Even with a short interval, most Energy Conserving oils do not stay in grade and these latest Platinum and Ultra uoa's are pretty good. Extend your intervals gradually though (if you're thinking about doing that). You could have high fuel dilution, low viscosity and high wear and Blackstone would still tell you to go another 2,000 miles. The protune probably helps as well. An OTS AP map would likely have more fuel dilution.

Nice filtering with the AEM as well! Ok, I've figured it out. This is a virgin oil analysis. Ha ha, the joke's on us.

-Dennis
Thanks for all the input guys . And yes, this was my first UOA ever, and I'm pretty glad I did it
DutchOven is offline   Reply With Quote
Old 05-12-2011, 01:43 AM   #8
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK Houston
we have an Uncle

Default

I still wanna know why people dump perfectly good oil at 3k mile intervals
Uncle Scotty is offline   Reply With Quote
Old 05-12-2011, 01:50 AM   #9
DutchOven
Scooby Specialist
 
Member#: 220629
Join Date: Aug 2009
Chapter/Region: SCIC
Vehicle:
2010 WRX Hatchback
Satin White Pearl

Default

i had no clue. it's gonna be 5k next time.
DutchOven is offline   Reply With Quote
Old 05-12-2011, 02:25 AM   #10
SubLGT
Scooby Newbie
 
Member#: 207528
Join Date: Apr 2009
Location: Idaho
Vehicle:
2005 Legacy GT

Default

Quote:
Originally Posted by bluesubie View Post
.........Even with a short interval, most Energy Conserving oils do not stay in grade and these latest Platinum and Ultra uoa's are pretty good...............

-Dennis
I am wondering if Pennzoil has made improvements in resistance to shear with the latest production runs.

My last UOA of PP 5W30 (2009 vintage, purchased for $1/qt ), that I ran for 2500 miles over this winter, showed shearing down to a vis of 9.2 (flash was decent, at 380F). And this was in a 100% stock motor, in a 2005 Legacy GT, driven in a sane manner.
SubLGT is offline   Reply With Quote
Old 05-12-2011, 07:59 AM   #11
bluesubie
Scooby Guru
 
Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

Default

^Along with FHI possibly making some improvements to the engine. My car is very tough on oil and always shows elevated oxidation and nitration.

-Dennis
bluesubie is offline   Reply With Quote
Old 05-12-2011, 08:03 AM   #12
rexspeedworthy
Scooby Specialist
 
Member#: 26965
Join Date: Oct 2002
Chapter/Region: MWSOC
Location: Independence, KY
Vehicle:
2011 WRX
DarkGray

Default

Quote:
Originally Posted by Uncle Scotty View Post
I still wanna know why people dump perfectly good oil at 3k mile intervals
I do it to help deplete the worlds oil supply, so we have to drill here in the US, so it creates jobs. Why DON'T you?
rexspeedworthy is offline   Reply With Quote
Old 05-12-2011, 08:17 AM   #13
jonklein611
Scooby Specialist
 
Member#: 117776
Join Date: Jun 2006
Chapter/Region: MAIC
Location: Moon Twp, PA
Vehicle:
2011 WRX Limited 5dr
WR Blue Pearl

Default

Quote:
Originally Posted by rexspeedworthy View Post
I do it to help deplete the worlds oil supply, so we have to drill here in the US, so it creates jobs. Why DON'T you?
well played....
jonklein611 is offline   Reply With Quote
Old 05-12-2011, 09:04 AM   #14
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK Houston
we have an Uncle

Default

Quote:
Originally Posted by rexspeedworthy View Post
I do it to help deplete the worlds oil supply, so we have to drill here in the US, so it creates jobs. Why DON'T you?



jesus....yer a REAL Einstein arent ya
Uncle Scotty is offline   Reply With Quote
Old 05-12-2011, 05:44 PM   #15
bluesubie
Scooby Guru
 
Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

Default

By the way, I hope you're planning to keep doing uoa's and posting them. So many people don't continue them and you don't get to see a trend.

-Dennis
bluesubie is offline   Reply With Quote
Old 05-12-2011, 05:51 PM   #16
DutchOven
Scooby Specialist
 
Member#: 220629
Join Date: Aug 2009
Chapter/Region: SCIC
Vehicle:
2010 WRX Hatchback
Satin White Pearl

Default

I do intend on doing a UOA for every oil change that I do. Already bought the package deal thing from blackstone

Thanks Dennis
DutchOven is offline   Reply With Quote
Old 01-19-2012, 12:05 PM   #17
mtbiker278
Scooby Newbie
 
Member#: 242578
Join Date: Mar 2010
Location: Maryland
Vehicle:
2010 WRX
Spark Silver

Default

Here's my recent one on Penz Plat 5w30. I know it's a somewhat old thread, but same topic.

mtbiker278 is offline   Reply With Quote
Old 01-19-2012, 05:59 PM   #18
bluesubie
Scooby Guru
 
Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

Default

Looks good and it actually stayed in grade (just barely). Some trending would be helpful since it's rare to see several successive uoa's on Resource Conserving oils. I would at least go with Pennzoil Ultra (if I didn't run a thick oil) as the new SN version has very impressive NOACK volatility numbers and is purportedly made with PAO base stocks.

Are you planning to extend the interval?

-Dennis
bluesubie is offline   Reply With Quote
Old 01-19-2012, 09:25 PM   #19
2011OBPWRX
Scooby Newbie
 
Member#: 296791
Join Date: Oct 2011
Chapter/Region: MWSOC
Location: cHICAGOLAND
Vehicle:
2011 wrx
OBP

Default

If he does extend the interval, would the oil not likely fall down into 20w territory?
Bit of a downer that a jug of synthetic barely lasts 4,000 miles before it starts being barely adequate.
2011OBPWRX is offline   Reply With Quote
Old 01-19-2012, 09:47 PM   #20
bluesubie
Scooby Guru
 
Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

Default

post malfunction
bluesubie is offline   Reply With Quote
Old 01-19-2012, 09:49 PM   #21
bluesubie
Scooby Guru
 
Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

Default

Quote:
Originally Posted by 2011OBPWRX View Post
If he does extend the interval, would the oil not likely fall down into 20w territory?
Bit of a downer that a jug of synthetic barely lasts 4,000 miles before it starts being barely adequate.
Yep, but some people do follow Blackstone's advice even if there is some fuel dilution. There have been 5W-30 uoa's posted here with oil shearing to a 20 grade in less than 2k miles so staying a 30 grade in 3,750 miles is pretty good, IMO! But no, I wouldn't extend this interval.

-Dennis
bluesubie is offline   Reply With Quote
Old 01-20-2012, 09:36 AM   #22
mtbiker278
Scooby Newbie
 
Member#: 242578
Join Date: Mar 2010
Location: Maryland
Vehicle:
2010 WRX
Spark Silver

Default

Well when I changed the oil I just put in new Penz Plat 5w30. I'm debating letting it run out to 5k, but we'll see. I'd like to do a second sampling after this oil change and see what the cst is. I've seen some other UOAs with the same oil that ended up around 10cst. I was doing some research and most 5w30 weight oils start with cst from anywhere around 9-12cst right out of the bottle. I don't do any racing, hard launching, or bouncing off the rev limiter, so the likelyhood of spinning a bearing daily driving is pretty low. However, I do understand that lack of oil, or film strength is what leads to spun bearings so the potential is there.

Only reason I went with the oil i did is cause it was on sale. If I see the T6 I'll give it a try, but it hasn't been available at either local pepboys or advance auto.
mtbiker278 is offline   Reply With Quote
Old 04-30-2012, 09:23 AM   #23
mtbiker278
Scooby Newbie
 
Member#: 242578
Join Date: Mar 2010
Location: Maryland
Vehicle:
2010 WRX
Spark Silver

Default

Surprising results on this last sample. 5k miles. Viscosity stayed within range.

mtbiker278 is offline   Reply With Quote
Old 04-30-2012, 11:15 AM   #24
gpshumway
Scooby Specialist
 
Member#: 43950
Join Date: Sep 2003
Chapter/Region: MWSOC
Location: Minneapolis, MN
Vehicle:
07 WRX LTD Wagon
Satin White Pearl

Default

Interesting. As EC oils go it seems to be doing pretty well. Two successive decent UOAs. What are your driving conditions? Short trips at all? Any mods?

I'd lowered my opinion of PP after seeing some less than stellar UOAs of the SN version over on BITOG. That combined with the loss of ACEA A5/B5 rating led me to sort of write it off in favor of Ultra (usually very close in price).

Is yours the SN version, or do you have old stock of SM?
gpshumway is offline   Reply With Quote
Old 04-30-2012, 11:40 AM   #25
mtbiker278
Scooby Newbie
 
Member#: 242578
Join Date: Mar 2010
Location: Maryland
Vehicle:
2010 WRX
Spark Silver

Default

I'm pretty gentle with my car. Only have an exhaust, and my tank mpg averages ~25-27mpg with mostly highway driving. As far as I know this is the new SN version that's on the shelves now. I still have the jugs at home and can double check.

I would definitely go with the Ultra if it was available in the 5qt jugs, but I've never seen it in those. i like the jugs cause I can just fill them back up with the used oil to go recycle it. Plus less packaging is always good. I'll see what this next report turns out like. Might not go out the full 7k mi that Blackstone recommended, but somewhere in between 6-7k mi.

Last edited by mtbiker278; 04-30-2012 at 10:40 PM.
mtbiker278 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
quetion on break in on 2010 wrx mike bodame Newbies & FAQs 21 06-27-2010 07:28 PM
Accessport on 2010 WRX 2010 WRX Limited AccessPort 9 01-25-2010 02:36 PM
TPMS Reset on 2010 WRX? RGC97 Tire & Wheel 9 11-11-2009 01:56 PM
Roof Carrier Bar Install on 2010 WRX j_beckner Newbies & FAQs 1 10-28-2009 07:03 PM
Starting Sound on 2010 WRX + Road Noise j_beckner Newbies & FAQs 10 10-28-2009 07:02 PM


All times are GMT -4. The time now is 05:42 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.