I have been reading an awful lot about Alpha Ones. The 2019 models came with the slotted pistons where fuel and engine saving oil was injected. There were a few piston skirt related issues. Cat then cleaned up their emissions act for 2020 by directing the fuel and oil directly into the cylinder. The 2020's make more power and run cleaner but, can the 2020's be expected to have more or less longevity than the 2019 models? It sounds like a snow filter for the air intake may be in order for either version of the engine? Thoughts?