Calculations of octane for US market (and others using the formula Pump octane=(R+M)/2 R=Research Octane Number(RON) M=Motor Octane Number(MON) If MON is 83 (typical) 91RON = 87 averaged 96RON = 89 averaged Jimt > 85-87? You run on kerosene?? No wonder US-market > cars have detuned engines! Outside the US some > cars still require 96 octane or more. Some cars > will run on 91 thanks to their management > systems, but these cars DO suffer some loss of > performance as a result due to the resultant > retarded firing. > > You might guess that NZ has 91 and 96 octane; > Shell has just started offering 98.Irrelevent to > most listees, but for interest the price > difference here between 91 & 96 is about 4¢/liter > NZ, or about 3¢US, which is hardly going to break > the bank. > -- > Andrew Grebneff > Dunedin > New Zealand > Fossil preparator > <andrew.grebneff@stonebow.otago.ac.nz> > Seashell, Macintosh, VW/Toyota van nut > > HUMANITY: THE ULTIMATE VON NEUMANN MACHINE > > DEMOCRACY: RULE BY THE LOWEST COMMON DENOMINATOR > > |
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