Originally Posted by Astro_Guy
Originally Posted by jeepman3071
If 50:1 wasn't good enough the manufacturers would have piles of warranty claims.
Okay - but all the new Craftsman brand stuff I've seen calls for a 40:1 mix. Perhaps this simply reinforces your argument?
My Craftsman blower has 40:1 on the fuel cap, as you mentioned. I've been running 50:1 in it (Husqvarna semi-synthetic mix, or Briggs 2 cycle oil) since it was purchased in 2006. I took the muffler off last year to check carbon build up and the piston + rings looked great, and compression was perfect. My guess is that it has around 60 hours of use on it.