Well, finally got around to canceling my BP card today. I got it a few years ago when BP replaced a local Speedway station. The big deal was .15 off a gallon and they indicated that their additive package was equal to or exceeded Toptier. Anyway, did some research and read some analysis of actual detergents present, turns out, not so much. Additionally, only one BP station in my area and they are ALWAYS the highest price. Exxon locally with my .10 cents/gallon off nets out at $2.799, BP nets out at $3.249. I give up. Just not worth it. I'm sticking with ExxonMobil, Shell or Sunoco, lower prices and a Toptier stickers on the pumps.