View single post by Jim Ketcham
 Posted: 07-16-2013 09:34 pm
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Jim Ketcham


Joined: 03-13-2005
Location: Salt Point, New York USA
Posts: 198
Remember that the JH manual specifies RON. In the US the octane rating on the pump is (R+M)/2., that is, the average of the Research Octane Number ( RON) and the Motor Octane Number (MON). Since the MON for typical fuels is about 8 numbers lower than the RON, US "regular" at 87 (R+M)/2 should meet the 91 RON requirement as specified in the JH manual.
JH fuel lines are steel and should be okay with ethanol. Aluminum and certain elastomers do not seem to like ethanol, but I have not experienced any problems with E10 (10% ethanol) which is what we see in the US (in all grades) in non-compliance areas.