Perth-WRX.com  

Go Back   Perth-WRX.com > Technical > Mechanicals
Register Diddy Kart ArticlesAll AlbumsBlogs FAQ Members List Calendar Search Today's Posts Mark Forums Read

Iconic Auto Refinish
Welcome to Perth-WRX, click here to register!

Like Tree2Likes

Reply
 
LinkBack Thread Tools Display Modes
  #21  
Old 20-08-2012, 09:01 PM
tuna's Avatar
Sign me up!
Why stop at two bar?
 
Join Date: Jul 2005
Location: Where horsepower is cool again.
Posts: 5,540
Blog Entries: 5
Thanks: 6
Thanked 92 Times in 46 Posts
tuna is a gurutuna is a guru
Default

10w40, any brand will be better long term than an expensive lighweight oil.

The only time you need to run a 0w/5w oil is on a dyno day for the extra few short lived kw's.
SPead9 likes this.
__________________

Long live the WRC
Reply With Quote
  #22  
Old 20-08-2012, 09:57 PM
MattuZ's Avatar
STI Master
Member
 
Join Date: Nov 2009
Location: North of River
Posts: 585
Thanks: 0
Thanked 1 Time in 1 Post
MattuZ at standard level
Send a message via MSN to MattuZ
Default

Quote:
Originally Posted by Marti View Post
As said before 10w40
Motul is recommended and used by subaru for subarus
genuine oil is actually 5w/30 for wrx/sti

i always use genuine oil in my car with 130,000kms and doesnt burn much oil
a thicker oil can also give you worse fuel economy
__________________
2000 WRX - Grip King
1997 Sileighty - Gate Monster
Reply With Quote
  #23  
Old 21-08-2012, 06:50 AM
Marti's Avatar
STI Master
Member
 
Join Date: Nov 2007
Location: Beeliar(SOR)
Posts: 745
Thanks: 6
Thanked 21 Times in 21 Posts
Marti at standard level
Default

5/30 is an option if you want to spend more money and it's a synthetic oil where as the subaru recommended 10w40 is semi synthetic. If your car is burning oil run the thicker 10w40
__________________
Marti


Car: C Red S13 Silvia 2.3l 400+rwhp-SOLD
Daily ae82 4age corolla (light mods)-Sold
Daily:SWB GQ Patrol
Will be a 03-04 STI next
Reply With Quote
  #24  
Old 21-08-2012, 09:13 AM
Kato's Avatar
Sign me up!
Burnout!
 
Join Date: Jul 2005
Location: Pimp Corner
Posts: 7,093
Thanks: 7
Thanked 120 Times in 75 Posts
Kato is a guruKato is a guru
Default

1. Put the oil grade as specified in your user manual / or specified by your engine builder.

2. The number before the W (for winter, not weight - damn fast and furious) is your cold start oil type. Once the engine is up to temp it doesn't have much to do with the operation of the engine/oil. If your car is burning oil when running, changing from a 5W to 10W will do bugger all, you need to look at the last number for a thicker oil.

Oils are essential life blood of your car, don't just go changing things without researching it first.

Good starting point is wiki Motor oil - Wikipedia, the free encyclopedia
__________________
550Nm off a 2L... Just wish it was in the dak dak...
Reply With Quote
  #25  
Old 20-02-2013, 11:44 AM
BoxerDan's Avatar
WRX Hi Five Club
Member
 
Join Date: Sep 2011
Location: Swan Valley
Posts: 227
Thanks: 9
Thanked 8 Times in 7 Posts
BoxerDan at standard level
Default

crawl3r what oil did u end up using?? and what were the results?

I've been on the 5w40 and I'm thinking of going to 10w50...
Reply With Quote
  #26  
Old 20-02-2013, 10:21 PM
dtrally's Avatar
Sign me up!
Handbrake!!
 
Join Date: Jan 2007
Location: Perth
Posts: 2,482
Thanks: 6
Thanked 113 Times in 78 Posts
dtrally is a gurudtrally is a guru
Default

5/30 is too thin for our climate for long term protection. Thin oil helps keep exhaust emissions low and promotes slightly better economy all at the expense of engine protection. EJ25's also have a different sump that has the oil level closer to the crankshaft, this can lead to increased windage and oil consumption.
Reply With Quote
  #27  
Old 24-03-2013, 09:21 PM
Scoobie Noobie
Member
 
Join Date: Feb 2010
Location: Perth
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
snowball05 at standard level
Default

As something like 70% of wear occurs at start up and in a cold engine, the lighter the oil, the quicker it will run in to places where lubrication is needed, providing the best protection. My understanding is that the determining factor is oil pressure. You should run the lightest oil you can which maintains oil pressure within the recommended parameters. A car with more engine wear will need a thicker oil in order to maintain pressure and/or not burn oil.
Reply With Quote
Reply

Tags
burning, engine, oil, quickly

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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cusco Lubricants: Fully Synthetic Race Engine Oils and Cusco LSD Oil mao Evolution R 33 23-07-2013 09:01 PM
Hyperflow Race Sumps Bram Non Commercial Group Buys 0 31-07-2012 05:52 PM
Minature Engine mattmy99 Non-WRX Discussion 7 06-07-2011 05:26 PM
Anyone need a copy of the Factory GD -> Sti service and diagnostic manual? Rossco General Subaru Discussion 15 19-04-2009 12:54 AM
USDM Recalled MY08 Forrester FXT and MY08 WRX STI American Dave General Subaru Discussion 53 14-05-2008 06:23 PM



Welcome to Perth-WRX, click here to register!

All times are GMT +8. The time now is 04:30 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO