2cents worth-I guess im old school but when people speak of 1:60 up to 1:100 oil ratios i think "hand grenade"
Id rather live with a little spooge (assuming jetting is close,it means some oil is unburnt upon leaving the engine...not that there is too much oil in the mix).
If there is no spooge at all then 100% of oil has combusted.Ash is a poor lubricant...
40:1 full synth a little spooge,no worrys
Very high flashpoint synth such as belray h1r are best for wot/mx applications,they will spooge more even if your jetting is perfect if you ride tight and technical.
Some lower flashpoint oils will also leave more residue on the plug (my own observation only)
I like castrol power1 tts @40:1 for "a bit of everything" riding.
Disclaimer,i dont have an engineering degree,but i read/research a lot,and have a decent amount of exp from chainsaws to tractors.LOL a kiwi has spoken!
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2013 ec200r
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