It was the crapola BP gas that got me. I usually buy my gas locally at a Phillips 66 station and never had problems. I ran low on gas while out of town and got a tank full of BP Premium (Premium crap they must have sucked off the top of the gulf). Anyway, I stopped at Autozone and got some octane booster, then to P66 and filled it up with their premium. I still had over a quarter tank of crap BP gas in it. I drove it mellow for about a half hour and then started getting on it again. The ping is 99% gone. If I really listen for it and crack it hard I think I can hear a slight ping, but I still have whats left of the crap gas in there. Once I run this tank empty and fill up again it should be as good as new.

I hate it when I think my bike has something wrong with it!!!!!

 

Settle down there guy, BP gas is the best out there. Possiblity that the premium from that station doesnt get used much and has sat for too long.

 

Used to like BP until late last yr,, they now only gas with 10% ethanol in it. That I wont buy unless forced to... We still have shell, Marathon, and Speedway.

 

I'd have to agree that if you put in premium which was at least 91 octane, then you probably just got a bad batch or it had been there too long. It's the 85 octane you have to use when you take a ride through the dessert towns that gets you. I always keep a small bottle of octane booster with me now. Saved my bike a couple of times already. Glad to hear you fixed it and it wasn't a big deal. Now go empty the tank again!

 

Thankjs for all the advice guys. I did get a bottle of octane boost and since they are made for car gas tanks I only poured about a quarter of the bottle in and I am keeping the rest in my swingarm bag in case this happens again. I'm surprised I got bad gas at this BP station as it is in the Quad Cities and on a busy street. They should be selling plenty of premium.

 

Consider your tune. It doesnt seem you have any extensive motor work. Air fuel ratio good? Stock cams don't like any advance at all. I had no issues running lower grade gas with my previous stage one. 100* 87 only for 3 fill ups.

 

Purely subjective. As someone who works in the refining biz, I use Chevron or Shell, in that order. And I don't work for either of those companies.

Wherever you buy, it is always best to try to use a station that has turnover, though.

 

sunoco since day 1 no problems and ill push my bike past a citco before stopn

 

chevron premium 94 octane is the only fuel that goes in my bike..
dedicated premium pump and hose so no getting the last guys cheap stuff..just premium..