can opened....worms everywhere... lol

Seriously, that debate will rage on and on and on, be prepared for a slew of arguments, suggestions, complaints, I-know-a-guy whose engine gained 500rpm just by putting an ounce of chipfat in his oil...blah blah blah.

There are many brands and some of them work better in different conditions. I use whats available in easy access, decent price....and run it at suggested spec. For me thats Stihl HP for my Saito Gassers and the same or Redline in the 2-strokes.....works for me, is available.