Having tried all sorts of oils for some time and 'k's miles I have found that the best oil for a 2F engine is the heavy farm equipment* /diesel engine oil synthetic blend "Mystic JT-8 oil 15W50"
Comes in 2gal canister, perfect qty for an oil change!
-Engine runs super quiet** like new out of the factory, also in higher rpm
-Performance is definitely up, noticeable more power
-Cylinder compression is on average 3-8 psi higher
-Fuel economy is up, doing on average mpg 15, Hwy (55mph) 17 country road 35 - 50 mph range 18 mpg
-oil consumption is down, now about a quart per 2k miles
-spark-plugs have considerably less combustion residue buildup.
*Let's face it a 2F is a tractor engine, 1930's technology
**(I was actually asked by cruiser head:"Got a rebuild in there , runs really smooth and quiet..."
(Didn't tell him I was approaching 340k miles on it!)
Comes in 2gal canister, perfect qty for an oil change!
-Engine runs super quiet** like new out of the factory, also in higher rpm
-Performance is definitely up, noticeable more power
-Cylinder compression is on average 3-8 psi higher
-Fuel economy is up, doing on average mpg 15, Hwy (55mph) 17 country road 35 - 50 mph range 18 mpg
-oil consumption is down, now about a quart per 2k miles
-spark-plugs have considerably less combustion residue buildup.
*Let's face it a 2F is a tractor engine, 1930's technology
**(I was actually asked by cruiser head:"Got a rebuild in there , runs really smooth and quiet..."
(Didn't tell him I was approaching 340k miles on it!)