Welcome to the North American Subaru Impreza Owners Club Wednesday January 24, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
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. 
Thread Tools Display Modes
Old 11-22-2005, 01:49 AM   #1
NASIOC Supporter
Member#: 90539
Join Date: Jul 2005
Chapter/Region: South East
Location: Lake Charles
My BOV goes

Default What weight oil to use in 97-98 2.5liter?

Like it says above. I did a 2.5 swap into my 95 and am not sure if the requirements for the 2.5 are the same as my older 1.8. I don't want to lose any hp by using too high of a viscosity. I currently use 10w-30.
-Had a 1.8 that required 10w-30
-Swapped engine to newer 2.5 (97-98)
* Registered users of the site do not see these ads.
2slofouru is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 11-22-2005, 07:27 AM   #2
Scooby Specialist
Member#: 11808
Join Date: Oct 2001
Location: Cape Coral,FL

Book says 5w30 up to ~100F and 10w30 for temps over 100 F I live in sw Fl where temps are in the 90s most of the year and my drives are mostly over 50 mies so I use 10w30.
Hayes is offline   Reply With Quote
Old 11-22-2005, 12:17 PM   #3
Scooby Newbie
Member#: 99470
Join Date: Oct 2005
Location: San Jose, CA
1998 Legacy Outback


My '98 Legacy Outback user manual for the 2.5 allows use of 10W40 for low-to-high temps. I always err on the side of heavier oil, since the automobile industry is opting for the lighter stuff to increase CAFE, at the possible expense of engine parts.
edjack is offline   Reply With Quote
Old 11-22-2005, 12:37 PM   #4
Scooby Specialist
Member#: 39503
Join Date: Jul 2003

Change oil twice a year
10W-30 summer
5W-30 winter
Corkfish is offline   Reply With Quote

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
What engine oil to use in high HP engines crazy06 Built Motor Discussion 11 10-07-2009 11:35 AM
What gear oil to use on a 01' 2.5 RS? ommmjido Transmission (AT/MT) & Driveline 2 05-26-2003 09:04 PM
Which weight oil to use in this situation? armand1 Service & Maintenance 12 02-07-2002 03:16 PM
What brand of oil to use in RS? Vigorous Newbies & FAQs 3 12-08-2001 05:03 AM
What weight oil to use during the summer,... subymamma South East Region Forum 6 05-24-2001 08:40 PM

All times are GMT -4. The time now is 06:44 AM.

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.