Posted by dhermesc on August 17, 2009 at 06:50:17 from (24.248.193.103):
In Reply to: Re: posted by Will Herring on August 16, 2009 at 21:27:10:
87 Octane is fine in those old tractors. Some did specify 93 Octane when they came out - but the octane rating used at the time was Research Octane Number (RON). In the US every gas pump uses the average of the RON and Motor Octane Number (MON) - essentially gas that had a rating of 92 in 1955 would today have a rating of 87 octane.
Not to mention the fact that if you have a problem with detonation in 7.5:1 compression engine - its HIGHLY unlikely that the issue is the 87 Octane fuel in the tank.
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