I wouldnt burn any higher octane gas then absoulutely necessary to prevent pre ignition spark knock, so unless your tractor has been modified for higher compression that would likely be 87. Higher octane gas is designed purposely harder to ignite (avoid pre ignition) so why use it and perhaps have a less efficient burn and left over products??? If there were more lead in it would be one thing which may help reduce valve wear but if its still unleaded I see no reason for its use unless you raise the compression.
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Today's Featured Article - Trenching With a Plow - by Staff. Introduction: This interesting information came from one of the discussion forums here at YT. We thought we should place it up front so it could be read by anyone interested in putting old iron to work. [Editor] I tried something new today, and it worked so well I thought I should post it - in case it might help someone else. I'm running 100 yards of 4" drain pipe from the gutter downspouts of our house to a pond down the hill. This should hel
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