I'm trying something new on my personal engine. I had been using Stihl brand at 50:1, but my bikeshop guy, who also is
the small engine expert in Decatur, gave me a few packets of Sten Mix synthetic, saying the muffler would stay cleaner longer.
Very noticable difference,
less smoke coming out of the exhaust.
The thing I didn't like was how I had to drain the plastic packs into a bottle for
on the road use, the packs are 1.8 fl.oz., and when I have to fill up on the road, I use the cap of the oil bottle as my measuring devise, 1 cap equals 3-4 cc.
On the outskirts of Bayou La Batre, a guy gave me a nearly full bottle of what he called "
the best synthetic",
AMS Saber Professional 100:1 Pre-Mix.
https://www.amsoil.com/
5 guys were gathered around my bike when he gave me the bottle, these guys are gulf fishermen. What they were saying was once the rings are seated, it didn't matter what mixture you used, 50/80 or 100 to one, synthetic simply
took less to do more.
That personal engine has over 5,000 miles now, has had the cylinder inspected by two small engine mechanics who both say the rings are in perfect shape, so I'm going to take the advise and stick with synthetics.