They won’t be using 40 year old 2 strokes on Mars...
How does Mars come into this at all. I’m talking about mowers, push and riders; 2 cycle tillers, string trimmers, hedge cutters, blowers and all that other home equipment.
To add insult to injury, my car - none of the three that I’ve had that ALL had O2 sensors go bad because of the ethanol contamination that causes them to malfunction (BTW it is proven ethanol affects wideband O2 sensors). And in case you’re wondering, the cheapest you can replace one outside of doing it yourself is over $100. I finally just bought an OBD II sensor tool that just resets the fault light.