Kurt Ullman wrote:

In article , dpb wrote:


I'm having difficulty parsing this...
I had difficulty writing it, not enough coffee, I guess. (g)


Those "that did not require oil and gas mixture" to me means 4-cycle
engines. There have been 4-cycle small engines around "since forever"
so they definitely were around well before ethanol became widespread. I
was thinking specifically of the first relatively short-lived ethanol
boom during the Carter-era shortages that affected passenger vehicles
but not, to the best of my recollection, small engines so much...

--
What I was TRYING to say is that earlier in my life, all of my
mowers required the 4-cycle oil. My last few have run on regular gas
without the need for including the oil in the gas. Would THOSE (the ones
running on regular only) be more likely than the 4-cycle engines to be
more ethanol tolerant as they (seemed to me anyway) to come on to the
scene after ethanol was in wider use.

2-cycle engines use gas-oil mix.
4-cycle engines use straight gas and have a separate oil sump.