Good morning all! I've been running a mix of 40:1 to 32:1 mix in my Stihl trimmer since I bought it new in 07'. Last year I bought an inexpensive Toro blower to blow off the driveway of grass and leaves, but ever since new it has never run exactly right (hard to get going and bogging/heavy smoking after an idle). Even worse when I would use a little extra oil in the mix. Yesterday I bought an inexpensive Ryobi 16" chainsaw and had a heck of a time getting it to start/run when cold. This makes me think with the newer "emissions" equipment are not tolerant to anything over 50:1. I always use 93 octane and treat it along with using Klotz Benol Castor oil. I know that oil does produce a decent amount of carbon/smoke, but it runs excellent in my old trimmer. Anybody have any thoughts on this? Should I just go to using a 50:1 mix in everything, or maybe go with a different oil?