Outside of NAFTA cross border shuttle areas it is all regular USA diesel.
When I make statements about regular diesel being shipped to Canada do I need to clarify sea-lawyer style that the fuel is used in commercial fishing vessels and the ferry system between Vancouver, Nanaimo, and the mainland?
Some of you folks have GOT TO actually look at the diesel being dispensed instead of simply guessing or assuming things are this way or that way.
ACTUALLY SAMPLING DIESEL for clarity reveals ULSD is all but transparent. Regular USA diesel is not as easy to distinguish. I have to do it in full direct sunlight. Regular Mexican diesel has a definite yellowish tinge. Diesel Marina is not only definitely pure yellow it is noticeably more viscous. Diesel Marina cannot be purchased for pleasure craft - it is purchased using a ship's manifest.