Volvo AWD 850 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 7/2005 850 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Use regular in NA engine 850 1997

posted by  Ken Temkin on  Sun Jun 23 16:00 CST 2002
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Oct 22 12:06 CST 2014
[RELATED]

I think that your answer agrees with my point.

Higher octane fuels DO NOT burn at a slower RATE. Both low, and high, octane fuels burn at the SAME RATE.

Where they differ is their "auto-ignition" energy. The amount of energy (either thermally induced, or induced with pressure) required to initiate combustion is higher in higher octane fuels.

I think that your first post, which talked about the "rate" of combustion, was incorrect. This last post, which talks about "retard[ing] the combustion point" is correct.

I just wanted to clarify this because, as you say, there is a lot of urban legend about high octane fuels.

Thanks for your responses.

Ken






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Regular VS High Octane. Worth it or waste of money??? [850]
posted by  MilwaukeeVolvo  on Fri Jun 21 08:49 CST 2002 >


<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.