Formula 1 Group III Synthetic (http://www.canadiantire.ca/browse/product_detail.jsp?PRODUCT%3C%3Eprd_id=84552444329 7710&FOLDER%3C%3Efolder_id=1408474396673428&bmUID=1239810307968)
Basically the same as your Castrol Syntec....mineral oil base, pretty good stuff. For $23.99 you can't go wrong. I bought a jug of 10w30 for my tractor lawnmower, I'll get 3 oil changes out of it. I also put it in my mom's Escape.
Great for your generators/small 4 stroke engines as well.