I am a JD guy and I would not recommend a JD 3020 gas. The newer formulas just do not run worth a darn in the JD gas tractors. You will be fighting the carb and fouling spark plugs all of the time.
The IH gas motors seem to be giving guys fewer troubles.
I am speaking of this first hand. I had a JD gas tractor on my feed wagon for years. Then about 10 years ago it became a full time fight to keep it running decent. I even overhauled it to see if the higher compression would make it work better.
IF you set the carb where it would not foul the spark plugs it would not rev up without stumbling. If you set it to take throttle it would carbon the plugs.
These issues are part of the reason a JD 3020/4020 gas sell CHEAPER than a diesel.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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