Mobil Delvac 1 rates highly. You can probably find it at Esso stations around Toronto, or check with their bulk supplier in town. Most truck stops should carry the Delvac 5w40 because its a pretty common oil for over-the-road trucks, especially in cold climates. I think its around 20 a gallon, not too expensive, all things considered.

Peace,
Sam

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"That f***in' biodiesel is makin' me hungry."

1982 300TD Astral Silver w/ 250k (BIO BNZ)
2001 Aprilia SR50 Corsa Red w/ 5.5k (>100 MPG)