Originally Posted by
SrTelemaster150
If a gas engine can run @ 5% lube why can't a methanol engine do the same when there is a 40% increase in fuel mix volume?
Gas is inherently oily. For those who don't believe it; pour some gas in a shallow pan & let it evaporate. Now rub your finger in the bottom of the pan. That shiny stuff now on your finger is oil.
I believe the high lube % of glow fuel is to protect against the unstable ignition timing & detonation associated W/GI. Unilke GI, A/F ratio & atmospheric conditions will not affect ignition timing W/CDI.
The spark timing won't change but get it too lean for the atmospheric conditions & it will detonate.
CR