Who cares what the cost is. I use and recommend Petro Can Premium. Their the only one I know that carries the highest Premium Gas that I know. And yes stay away from Ethanol specifically us here in Canada. I should mention my second choices would be SHELL premium only. CheersHi guys. I have yet to fill my tank for the first time, but it will need it soon. Thankfully I read in the manual to avoid ethanol above 15% (never knew that), so I was wondering what gas stations are safe to purchase from, and what ones I should avoid. I seem to recall that Mohawk does have ethanol in their gas, but I’m not positive. Costco seems to have the best prices, with premium hovering around $1.00/ liter.