Mix ratio -- observing the blue smoke

[Tomos770]

I've double dosed, so 16:1, and got no smoke. Modern synthetics, modern meaning the last 20 years, are fantastic.

Plus x-torq and 2-mix technology (regarding the blue smoke issue)....

 

[bwalker]

I've double dosed, so 16:1, and got no smoke. Modern synthetics, modern meaning the last 20 years, are fantastic.

I have no doubt.
Smoke is more an indication of tuning than anything else using quality modern oils of any sort.

 

[bwalker]

Plus x-torq and 2-mix technology (regarding the blue smoke issue)....

I was speaking for non strato engines, but yea that helps.
I have a Husqvarna/Redmax blower that's scarry clean. Doesn't even smell like a two stroke, no smoke and very good on fuel.

 

[bwalker]

My one saw failure was caused by a bit of carbon in a ring groove that locked the ring down at end of day two on a new saw, but that layer was so thin that it looked like a MAGIC MARKER on a shiny new piston, using 40:1 conventional name brand oil; I then switched to 50:1 synthetic name brand-x and no problem in 14+ years since w/ same saw. As REDLINE OIL website says (similar to) at what temperature does the oil change from a LUBE to a GUMMY adhesive? I want no smoke, I Fear carbon in a tight engine.

Air cooled engines are anything but tight. However, I am on the same page as you as it pertains to carbon in the ring area. That's what causes wear, loss of HP and eventually failure in a two stroke. Carbon on the piston crown isn't an issue and is in fact normal. If the crown is bare metal you are tuned to lean and even four cycle piston crowns are covered in carbon.

 

[davidwyby]

Oil burns…more BTUs/power than gas…gas cools… ;-)

 

[KASH]

If you get your gas from a different filling station you probably have to adjust or high speed needle if you mix mix your oil at a different ratio you probably have to adjust your high speed needle if the weather changes drasticly you probably have to adjust your high speed needle.
All I know for sure is this
A properely adjusted chain saw with a heavy mix of oil will last longer than a chain saw mixed with a light mix.
Most saws die from DULL CHAINS and LEAN HIGH SPEED NEEDLES .
Kash