Quote:
Originally posted by MrSelfDestruct
What do the R and M stand for in "R+M/2"?
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mind if i field this one?
R is short for RON, or Research Octane Number.
M is short for MON, or Motor Octane Number.
When a blend of gasoline is tested, its tested by both methods, RON and MON. RON tends to be higher, and is what you would find in a laboratory setting. pure science there, that is.
MON, on the other hand is garnered using real world testing results.
so the two numbers are added, then divided by two to get PON, or Pump Octaine Number.
oh, and me? i just dump straight BTX into the tank!