Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

6 cylinder- Do I need Premium gas?


  • Please log in to reply
26 replies to this topic

#26 Ranger83

Ranger83

    Subaru Nut

  • Members
  • 740 posts
  • Northeast

Posted 11 June 2006 - 06:24 AM

YOUR ORIGINAL MAIL:

What is meant by Premium fuel being 'Recommended?' I don't understand if this means only that the performance of the engine will be better with 91+ Octane fuel, or if it means that Regular grades are to be used only in emergencies. The engine seems to run very well with any fuel I have used, both Regular and Premium.

Is Premium considered to be 91 Octane?


Thank you

- Note - no mention of additive packages. Based on my use over 10,000 miles with various grades of fuel, running Premium in this engine is right up there with the 3,000 mile oil change. but here is the official response from SOA.

Thank you for taking the time to contact us. We hope that you have been enjoying your 2006 Outback 3.0R Wagon.

The 3.0-liter H6 engine is designed to operate using unleaded gasoline with an octane rating of 91 AKI or higher. Regular unleaded gasoline with an octane rating of 87 AKI or higher may be used. This is not just for emergency situations. You can use regular unleaded fuel in your vehicle on a regular basis. However, for optimum engine performance and driveability, it is recommended that you use 91 AKI or higher grade unleaded gasoline.

You may experience reduced output, poor accelerator response, and reduced fuel economy when using gasoline with an octane rating lower than 91 AKI, depending on your driving habits and conditions.

If you experience any of those conditions while using a lower octane rated fuel, you may want to return to using 91 AKI octane rated fuel as soon as possible. Additionally, if your vehicle knocks heavily or persistently, or if you are driving with heavy loads such as when towing a trailer, the use of 91 AKI or higher grade unleaded gasoline is required

Thank you for the opportunity to be of assistance. If you need any future assistance, please feel free to contact us again.

Best wishes,

John J. Mergen
Subaru of America, Inc.
Customer/Dealer Services Department
-----------------------------------------------------------





#27 supercharged-xt6

supercharged-xt6

    USMB Regular

  • Members
  • PipPipPip
  • 49 posts
  • Philly-Mohnton,PA

Posted 11 June 2006 - 10:30 AM

After I chiped my BMW540it which is also NA it knocks on anything less that 93octane thank G-d I live in PA we have sunoco 94 here.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users