Sorry ......... I'm old school ...... RUST NEVER SLEEPS ........ and OIL WILL GET DIRTY !!
I've been in mechanics all my life , unless its an engine from the Starship Enterprise ..... if its made of metal , and parts rub against each other , you NEED CLEAN lubrication , personally I use FULL synthetic oil in my personal vehicles, I change the oil every 5000 miles BUT I change the filter EVERY 2500 miles. I also add about a pint of LUCAS oil conditioner during the oil change.
In my lawn equipment I use a synthetic blend , living in Florida , except for a few months during winter, mowing is a year round job , so I change oil about 3 times a year . Oil IS the LIFEBLOOD of an engine , in my 2 cycle equipment , I use Opti-2 synthetic oil ( 100 : 1 ) yes I stated , one hundred to one mix ratio ...... NEVER a problem , I'm extremely careful when mixing oil and fuel , NO distractions ..... Proper amounts ! ( you can look up Opti-2 on the net ) engines run cleaner , no smoke , competitive price . If you want it to last , take care of it ! :thumbsup: