Welcome to the North American Subaru Impreza Owners Club Wednesday October 17, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
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 08-24-2015, 02:34 PM   #1051
oaklandish_WRX
Scooby Specialist
 
Member#: 267339
Join Date: Dec 2010
Chapter/Region: BAIC
Location: Ostinato Rigore
Vehicle:
2002 0[[XXXXoXXXX]]0
MBP LongRoof

Default

Quote:
Originally Posted by gpshumway View Post
The 0w30 did not replace the 5w30.
Thanks, I derped it good that day and could not for some reason find the 5w30 PDS on the M1 site...
* Registered users of the site do not see these ads.
oaklandish_WRX is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 09-02-2015, 03:27 AM   #1052
DonRamon
Scooby Newbie
 
Member#: 336309
Join Date: Oct 2012
Default

Good post, thx. I'm trying out rotella 5w-40 in my NA 2009 Impreza for this run.
DonRamon is offline   Reply With Quote
Old 09-02-2015, 10:46 AM   #1053
mrtouchdown
Scooby Newbie
 
Member#: 258082
Join Date: Sep 2010
Chapter/Region: W. Canada
Location: Calgary, AB
Vehicle:
2010 WRX STI
Black

Default

best read ever!!!!
mrtouchdown is offline   Reply With Quote
Old 10-12-2015, 01:01 PM   #1054
Poland_TCU
Scooby Newbie
 
Member#: 412831
Join Date: Feb 2015
Chapter/Region: TXIC
Location: San Marcos, TX/Westminster, CO
Vehicle:
2009 Impreza 2.5i
Silver

Default

Quote:
Originally Posted by DonRamon View Post
Good post, thx. I'm trying out rotella 5w-40 in my NA 2009 Impreza for this run.
I have the same car and unfortunately I'm getting a new motor because of a spun rod

It seems that the Rotella T is popular for the WRX, but I'm wondering if it's the best oil for the 2.5i?

Also, I'm considering adding some Liqui Moly MOS2. I read some pretty good reviews from people, but none of them were Subaru's. Does anyone have any experience with this product?
Poland_TCU is offline   Reply With Quote
Old 10-12-2015, 01:31 PM   #1055
gpshumway
Scooby Specialist
 
Member#: 43950
Join Date: Sep 2003
Chapter/Region: MWSOC
Location: Minneapolis, MN
Vehicle:
07 WRX LTD Wagon
Satin White Pearl

Default

Quote:
Originally Posted by Poland_TCU View Post
I have the same car and unfortunately I'm getting a new motor because of a spun rod

It seems that the Rotella T is popular for the WRX, but I'm wondering if it's the best oil for the 2.5i?

Also, I'm considering adding some Liqui Moly MOS2. I read some pretty good reviews from people, but none of them were Subaru's. Does anyone have any experience with this product?
The 2.5is usually don't show the same rod bearing problems as the turbo cars, most run fine on GF-5 5w30, but there are always exceptions.

Will you have a warranty on the rebuilt engine? If so, you may want to take warranty coverage into account when selecting oil. I don't think RT6 5w40 is really necessary in a 2.5i, but all it will hurt is your fuel economy. Otherwise, a slightly thicker 30 grade might be a good choice. German Castrol 0w30 is a favorite, Mobil 1 ESP is very good, but spendy. For a warranty friendly thicker oil consider Valvoline Full Synthetic Max Life, or Amsoil OE/XL.

I used the LM MOS2 additive when breaking in my WRX, it was in the first few oil changes, search threads I've started for my UOA thread. It's probably a good way to break in a new engine, or use one of the dedicated break-in oils/additives from Red Line, Joe Gibbs, or Amsoil. There are probably others.
gpshumway is offline   Reply With Quote
Old 10-12-2015, 02:21 PM   #1056
Poland_TCU
Scooby Newbie
 
Member#: 412831
Join Date: Feb 2015
Chapter/Region: TXIC
Location: San Marcos, TX/Westminster, CO
Vehicle:
2009 Impreza 2.5i
Silver

Default

Quote:
Originally Posted by gpshumway View Post
The 2.5is usually don't show the same rod bearing problems as the turbo cars, most run fine on GF-5 5w30, but there are always exceptions.

Will you have a warranty on the rebuilt engine? If so, you may want to take warranty coverage into account when selecting oil. I don't think RT6 5w40 is really necessary in a 2.5i, but all it will hurt is your fuel economy. Otherwise, a slightly thicker 30 grade might be a good choice. German Castrol 0w30 is a favorite, Mobil 1 ESP is very good, but spendy. For a warranty friendly thicker oil consider Valvoline Full Synthetic Max Life, or Amsoil OE/XL.

I used the LM MOS2 additive when breaking in my WRX, it was in the first few oil changes, search threads I've started for my UOA thread. It's probably a good way to break in a new engine, or use one of the dedicated break-in oils/additives from Red Line, Joe Gibbs, or Amsoil. There are probably others.
Thank you for your input! The engine I'm getting is used and the warranty is only for a year/12k miles. On the old engine I was using Mobile Extended Protection 5W-30 and it was consuming at about a quart per 1k (which the manual states is normal but I find completely absurd).
Poland_TCU is offline   Reply With Quote
Old 10-12-2015, 03:18 PM   #1057
Infinite0180
Scooby Newbie
 
Member#: 410716
Join Date: Jan 2015
Location: Buffalo NY
Vehicle:
2016 WRX
CBS

Default Oil FAQ: Read if you want more information on oil, oil filters, and oil chan...

Quote:
Originally Posted by Poland_TCU View Post
Thank you for your input! The engine I'm getting is used and the warranty is only for a year/12k miles. On the old engine I was using Mobile Extended Protection 5W-30 and it was consuming at about a quart per 1k (which the manual states is normal but I find completely absurd).

I run german castrol edge 0w40, its like the same as the german castrol edge 0w30 (which is now actualy Belgian castrol because they changed the plant location, same stuff though) in my 08 2.5i, i did alot of research and found out its a "light" 0w40 and just a tiny bit thicker than the 0w30 which is a very heavy 0w30. So when i saw wally had the 0w40 for 23$ for 5 quarts vs autozone trying to charge $9 a quart for the 0w30 i grabbed the 0w40. I can say that the 0w40 is great in my 08 and it purrs nicely with it. No power loss but maybe a tiny decrease in mpg, but i expected that compared to the watery 5w30s i was running before. It doesnt burn off as much and its safe to run extended OCI even with heavy service. I drive on average 30k a year with lots of city driving and a full car so this stuff is exactly what i needed. Cheap but very good stuff for heavy service and 7500 mile OCIs

EDIT: heres a picture of it... Give it a shot if you want extra protection and long drain intervals on your NA

Last edited by Infinite0180; 10-12-2015 at 03:24 PM.
Infinite0180 is offline   Reply With Quote
Old 10-12-2015, 07:23 PM   #1058
gpshumway
Scooby Specialist
 
Member#: 43950
Join Date: Sep 2003
Chapter/Region: MWSOC
Location: Minneapolis, MN
Vehicle:
07 WRX LTD Wagon
Satin White Pearl

Default

Quote:
Originally Posted by Poland_TCU View Post
Thank you for your input! The engine I'm getting is used and the warranty is only for a year/12k miles. On the old engine I was using Mobile Extended Protection 5W-30 and it was consuming at about a quart per 1k (which the manual states is normal but I find completely absurd).
In that case, I doubt you'll need the warranty, and even if you do they're unlikely to deny it for slightly "wrong" oil. Any of the above choices should serve well, but I'd personally go for Mobil 1 High Mileage 5w30. It's a good, inexpensive choice for a used engine of unknown provenance. In your climate you could also go for the 10w30 variety which is a bit thicker.
gpshumway is offline   Reply With Quote
Old 10-13-2015, 01:15 PM   #1059
bluesubie
Scooby Guru
 
Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

Default Oil FAQ: Read if you want more information on oil, oil filters, and oil chan...

Quote:
Originally Posted by Poland_TCU View Post
I have the same car and unfortunately I'm getting a new motor because of a spun rod

It seems that the Rotella T is popular for the WRX, but I'm wondering if it's the best oil for the 2.5i?

Also, I'm considering adding some Liqui Moly MOS2. I read some pretty good reviews from people, but none of them were Subaru's. Does anyone have any experience with this product?

Pennzoil Conventional (aka Pennzoil Yellow Bottle/PYB) 10W30 would work well in this application. It has a NOACK better than most "synthetic" oils and already has moly in it.

http://www.pqiadata.org/Pennzoil10W30.html

http://www.bobistheoilguy.com/forums..._more_oils,_9/
bluesubie is offline   Reply With Quote
Old 10-14-2015, 03:46 PM   #1060
Poland_TCU
Scooby Newbie
 
Member#: 412831
Join Date: Feb 2015
Chapter/Region: TXIC
Location: San Marcos, TX/Westminster, CO
Vehicle:
2009 Impreza 2.5i
Silver

Default

Thanks for all the advice guys! What would you recommend as far as oil filters go? I'm not a fan of the K&N's, they're difficult to remove in my opinion. I'm running on a Mobil 1 extended protection filter right now.
Poland_TCU is offline   Reply With Quote
Old 10-14-2015, 06:40 PM   #1061
gpshumway
Scooby Specialist
 
Member#: 43950
Join Date: Sep 2003
Chapter/Region: MWSOC
Location: Minneapolis, MN
Vehicle:
07 WRX LTD Wagon
Satin White Pearl

Default

The OEM filters are fine be they Fram or Tokyo Roki made. If you're going aftermarket the ones I'd use are the Fram Ultra, the Purolator Synthetic or the Purolator 14610 (former Subaru OEM). In that order.
gpshumway is offline   Reply With Quote
Old 10-22-2015, 10:38 PM   #1062
barrythebum
*** Banned ***
 
Member#: 415164
Join Date: Mar 2015
Vehicle:
2006 Audi S4

Default

Sub'd.

Good info here.
barrythebum is offline   Reply With Quote
Old 02-21-2017, 06:06 PM   #1063
devon807
Scooby Newbie
 
Member#: 463004
Join Date: Feb 2017
Location: Virginia
Vehicle:
2002 Impreza WRX
Black Pearl

Default

Great info!
devon807 is offline   Reply With Quote
Old 09-26-2017, 10:35 AM   #1064
iMagnus
Scooby Newbie
 
Member#: 473347
Join Date: Aug 2017
Chapter/Region: NWIC
Location: Middle Earth
Vehicle:
2011 STi Lim
Hi-Ho Silver

Default

an interesting starting point for understanding differences in CAS' for 100% (true) full synthetic oils and their groups.

Quoting from: https://www.ford-trucks.com/forums/8...ttela-syn.html

You have to look for the CAS number (found in the MSDS sheet) to somewhat decipher the base oil composition.

Hydroisomerized Group III Base oils:
Gas Oils, (Petroleum) Vacuum, Hydrocracked, Hydroisomerized, Hydrogenated C15-C30: CAS # 178603-64-0
Gas Oils (Petroleum), Vacuum, Hydrocracked, Hydroisomerized, Hydrogenated, C20-C40: CAS # 178603-65-1
Gas Oils (Petroleum), Vacuum, Hydrocracked, Hydroisomerized, Hydrogenated C25-C55: CAS # 178603-66-2
Also:
Middle Distillate, Hydrotreated: CAS # 64742-46-7
Distillates, Petroleum Hydrotreated Heavy Naphthenic: CAS # 64742-52-5
Petroleum Distillates, Hydrotreated Heavy Paraffinic CAS # 64742-54-7
Lubricating Oils (Petroleum), Hydrotreated C20-C50, Neutral Oil-Based: CAS # 72623-85-9
Lubricating Oils (Petroelum), Hydrotreated C15-C30, Neutral Oil-based: CAS # 72623-86-0 Coupons
Lubricating Oils (Petroleum), Hydrotreated C20-C50, CAS # 72623-87-1
White Mineral Oil, CAS # 8042-47-5
PAO's (Group 4 oils): 68649-12-7, 68037-01-4, 163149-29-9, 151006-63-2, 151006-62-1, 151006-60-9. VII's of +155 or greater

Diester (Group 5 oils): 28472-97-1; VII's average +170.

It used to be that the Group IV and Group V base oils were really the only synthetics. Now the highly refined hydroisomerized Gas oils are considered synthetics.
iMagnus is offline   Reply With Quote
Old 09-27-2017, 07:36 AM   #1065
bluesubie
Scooby Guru
 
Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

Default Oil FAQ: Read if you want more information on oil, oil filters, and oil changes!

Quote:
Originally Posted by iMagnus View Post
an interesting starting point for understanding differences in CAS' for 100% (true) full synthetic oils and their groups.



Quoting from: https://www.ford-trucks.com/forums/8...ttela-syn.html



You have to look for the CAS number (found in the MSDS sheet) to somewhat decipher the base oil composition.



Hydroisomerized Group III Base oils:

Gas Oils, (Petroleum) Vacuum, Hydrocracked, Hydroisomerized, Hydrogenated C15-C30: CAS # 178603-64-0

Gas Oils (Petroleum), Vacuum, Hydrocracked, Hydroisomerized, Hydrogenated, C20-C40: CAS # 178603-65-1

Gas Oils (Petroleum), Vacuum, Hydrocracked, Hydroisomerized, Hydrogenated C25-C55: CAS # 178603-66-2

Also:

Middle Distillate, Hydrotreated: CAS # 64742-46-7

Distillates, Petroleum Hydrotreated Heavy Naphthenic: CAS # 64742-52-5

Petroleum Distillates, Hydrotreated Heavy Paraffinic CAS # 64742-54-7

Lubricating Oils (Petroleum), Hydrotreated C20-C50, Neutral Oil-Based: CAS # 72623-85-9

Lubricating Oils (Petroelum), Hydrotreated C15-C30, Neutral Oil-based: CAS # 72623-86-0 Coupons

Lubricating Oils (Petroleum), Hydrotreated C20-C50, CAS # 72623-87-1

White Mineral Oil, CAS # 8042-47-5

PAO's (Group 4 oils): 68649-12-7, 68037-01-4, 163149-29-9, 151006-63-2, 151006-62-1, 151006-60-9. VII's of +155 or greater



Diester (Group 5 oils): 28472-97-1; VII's average +170.



It used to be that the Group IV and Group V base oils were really the only synthetics. Now the highly refined hydroisomerized Gas oils are considered synthetics.


Thank you for an 8 year old thread where they cannot spell the oil they're discussing (sorry, my grammar police hat is on).

An MSDS isn't a complete list of ingredients in motor oil. It only lists the hazardous substances. Most oil blenders these days blend various base stocks to create a finished product. So just because you find Group III, IV, or V base stocks in an MSDS does not mean that the oil is 100% composed of that base stock, only that the base stock was used. It's rare that any oil these days uses just one of any base stock regardless of their marketing.

At the time of that thread, Shell had confirmed that their Rotella T6 used Group III Shell XHVI base stock (not 100% positive on the 15W40). Good RT6 UOA's all over the internet show that it's the specs that matter most and not the base stocks used. Now Shell is moving to the Group III Gas to Liquid base stocks which meet or beat Group IV PAO's in some areas.

Remember, it's the finished product and the specs that an oil meets that matter most. The most demanding specs in the world (MB, Porsche) can be met using Group III base stocks. Welcome to the 21st Century!

Last edited by bluesubie; 09-27-2017 at 07:48 AM.
bluesubie is offline   Reply With Quote
Old 04-18-2018, 11:09 PM   #1066
MGrizzard
Scooby Newbie
 
Member#: 484231
Join Date: Apr 2018
Default

I'm seriously lost. One FAQ thread recommended a heavy duty oil, others say 5w30 and then some say thicker.

Can someone help me out and tell me if 5w30 is right or if I should do something else? I have an '03 WRX with 171k miles.
MGrizzard is online now   Reply With Quote
Old 04-18-2018, 11:29 PM   #1067
slow.wagon
Scooby Newbie
 
Member#: 484841
Join Date: Apr 2018
Chapter/Region: MAIC
Location: Maryland
Vehicle:
2008 WRX STI
Lightning Red

Default

Quote:
Originally Posted by MGrizzard View Post
I'm seriously lost. One FAQ thread recommended a heavy duty oil, others say 5w30 and then some say thicker.

Can someone help me out and tell me if 5w30 is right or if I should do something else? I have an '03 WRX with 171k miles.
The reason for all the variation is because everyone's motor is different. Frankly, I'd be surprised if there was one recommendation that could satisfy everyone. Stick with what works for you rather than trying to follow others. If you managed to put 171k miles on a turbo car, your choice in oil is probably good enough.
slow.wagon is offline   Reply With Quote
Old 04-18-2018, 11:34 PM   #1068
MGrizzard
Scooby Newbie
 
Member#: 484231
Join Date: Apr 2018
Default

Quote:
Originally Posted by slow.wagon View Post
The reason for all the variation is because everyone's motor is different. Frankly, I'd be surprised if there was one recommendation that could satisfy everyone. Stick with what works for you rather than trying to follow others. If you managed to put 171k miles on a turbo car, your choice in oil is probably good enough.
New to me. It was one owner though. I'll have to go through all the records he gave me and see what he was using. It was all dealer serviced. Good point. Thanks.
MGrizzard is online now   Reply With Quote
Old 04-18-2018, 11:52 PM   #1069
oaklandish_WRX
Scooby Specialist
 
Member#: 267339
Join Date: Dec 2010
Chapter/Region: BAIC
Location: Ostinato Rigore
Vehicle:
2002 0[[XXXXoXXXX]]0
MBP LongRoof

Default

Quote:
Originally Posted by MGrizzard View Post
New to me. It was one owner though. I'll have to go through all the records he gave me and see what he was using. It was all dealer serviced. Good point. Thanks.


If your getting into warm weather or will this oci then 40 is probably the better bet. With the Wear at your mileage, more oil film is better.

I’ve run 5w40 for 6.5 years. Great oil test results
oaklandish_WRX is offline   Reply With Quote
Old 04-22-2018, 08:51 PM   #1070
MGrizzard
Scooby Newbie
 
Member#: 484231
Join Date: Apr 2018
Default

Quote:
Originally Posted by oaklandish_WRX View Post
If your getting into warm weather or will this oci then 40 is probably the better bet. With the Wear at your mileage, more oil film is better.

I’ve run 5w40 for 6.5 years. Great oil test results
I appreciate the input. I'm in Maryland and the weather still hasn't decided if it wants to be 30° or 70°. Maybe 40 is a good idea.
MGrizzard is online now   Reply With Quote
Old 09-10-2018, 08:10 PM   #1071
2012wrex
Scooby Newbie
 
Member#: 413307
Join Date: Feb 2015
Default Is there oil better than Mobil 1?

I have been using M1 5W30 synthetic on my 2012 wrx for a few years now. It has accumulated 112,000 miles on it with an off the shelf stage 1 cobb accessport tune, an injen cold air intake, and invidia catback exhaust. I have been told that M1 is not the best oil to be used because it can shortly break down to a lower weight. Is this true and is using M1 in my engine bad for it? If so, is there a better oil to use than M1? I do not aggressively drive my car for it is my daily driver and need it and the engine to last.
2012wrex is offline   Reply With Quote
Old 09-12-2018, 07:43 AM   #1072
bluesubie
Scooby Guru
 
Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

Default Oil FAQ: Read if you want more information on oil, oil filters, and oil changes!

Quote:
Originally Posted by 2012wrex View Post
I have been using M1 5W30 synthetic on my 2012 wrx for a few years now. It has accumulated 112,000 miles on it with an off the shelf stage 1 cobb accessport tune, an injen cold air intake, and invidia catback exhaust. I have been told that M1 is not the best oil to be used because it can shortly break down to a lower weight. Is this true and is using M1 in my engine bad for it? If so, is there a better oil to use than M1? I do not aggressively drive my car for it is my daily driver and need it and the engine to last.


ALL Resource Conserving GF5 oils can break down and this is not just a Mobil 1 thing. Have a look around the forum for uoa threads. A uoa showing viscosity less than 9.3 cSt’s at 100C means that the oil sheared to a 20 grade. Whether or not this can be a problem in your application cannot be determined with one or two uoa’s.

Mobil 1 0W-40 is an excellent choice for your application. Mobil 1 10W-30 High Mileage is another great choice because it meets European ACEA A3 specs. Brand doesn’t matter. The specs that the oil meets matter most. There is no point running GF5 5W-30 in your application IMO.
bluesubie 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
Cooling System FAQ: Read if you want coolant information! Unabomber Service & Maintenance 661 02-12-2018 04:37 PM
Spark Plug FAQ: Read if you want spark plug information! Unabomber Service & Maintenance 726 10-11-2017 08:58 AM
Injector, Fuel Pump, and Fuel Rail FAQ: Read if you are thinking of upgrading! Unabomber Newbies & FAQs 184 10-10-2017 03:38 PM
Tool FAQ: Read if you want information on Subaru specific tools and sundries Unabomber Service & Maintenance 41 08-16-2014 04:59 PM
Car Storage FAQ: Read if you are storing your car for more than 30 days Unabomber Newbies & FAQs 104 10-10-2013 01:07 PM

All times are GMT -4. The time now is 06:07 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.