Canadian gas is pretty good, but for a few retailers we have managed to stay away from the corn juice. The Canadian West only has a couple refineries, all the gas is from them, however some retailers do specify extra additives to "make it better". All the same price anyway so I usually stick with the better brands.
Travelling the US, different story ,sometimes when the light is on and you are in the boonies somewhere, can't be too picky.
Anyway, slightly overdue...Ooops...BMW fuel filter and I was surprised at how much crap was in it, pretty well half US and half Canadian gas.Not the first BMW filter I take apart, certainly the dirtiest.
But I just stuck some of the media in water, after a couple hours could not even blow through it, as opposed to the dirty dry media, albeit difficult, I can at least get some air through. But the complete filter before I cut it up, easily passed air so maybe not so overdue after all.
Little test does not prove anything really, but considering how much of a PITA it is to change that filter on the newer Ks, I think I'll stick with OEMs, not that I have anything against Napas, I have used them before. But considering the poor quality of some gasolines, I can only say stick with good quality filters and...change them often!
I guess I could also buy a Napa and cut it open, for less than $10.00, that would amuse me for half an hour or so, and very possibly save me some money down the road if I find them acceptable. BMW filter prices are.....^%$##%^*(( !!!!
Oh.....gas pumps not too far from here! I think they may be the last in the West,never had a problem with their gas, NO Corn Juice...