WebIn the U.S., we use Anti Knock Index (AKI), also called (R+M)/2, where the average (mean) of the RON and MON is used as the rating. 87 AKI is likely the same as 91 RON, just like 93 AKI (typically the highest premium pump gas octane rating in the U.S.) is the same as 98 RON used elsewhere in the world. Edit: If you want to see if it makes a ... Webcommercial gasolines have a higher octane number by the Research Method than by the Motor Method. [If you think about it, a little dishonesty by someone is evident here. The …

Octane Rating Decals - UnitedSign

The most common type of octane rating worldwide is the Research Octane Number (RON). RON is determined by running the fuel in a test engine with a variable compression ratio under controlled conditions, and comparing the results with those for mixtures of iso-octane and n-heptane. The compression ratio is varied during the test to challenge the fuel's antiknocking tendency, as … WebAn octane rating, or octane number, is a standard measure of a fuel's ability to withstand compression in an internal combustion engine without detonating.The higher the octane number, the more compression the fuel can withstand before detonating. Octane rating does not relate directly to the power output or the energy content of the fuel per unit mass … how to unpause a lexmark printer

Octane rating 87 (research octane number 91)? - Toyota Nation …

http://www.pencilgeek.org/2009/05/octane-rating-conversions.html WebSep 11, 2004 · Pablo. In a nutshell (because I'm not an expert and don't play one on TV) and not gospell, but my understanding: R = research derived octane number M = motor octane … http://www.pencilgeek.org/2009/05/octane-rating-conversions.html how to unpassword protect excel file