i know exactly what does what and why , i wish i could freely speak my mind but i will not


the rod in the roma is a completely different rod than the .21 engines have , it is from the .28 engines

i have not seen one 14 rod fail as of yet

i will say backflips, flat landers , lawn darts and the like are NOT good for engine internals !!!!!!

neither is cold running

i will agree some of the fuels are CRAP out there today , its a very hard balance to obtain with fuel oil pkgs as these engines are quite unique in the sense that they receive their lubrication from the same source of liquid that produces the combustion and not having a lubrication cavity for moving parts to bathe in

i will not go into detail of what i think of which fuels but like Neil i see many many engines on my bench and inquire about the life of the engine and fuels that have been ran , etc. etc.