Quote:
Originally Posted by DEpointfive0
Costco is a Top Tier gas now. I use it exclusively in everything now
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They must have upgraded the quality. About 3 years ago when I was running it, it kept pulling timing out of the car because it was seeing detonation, same with BJ's. As soon as I added octane booster, the timing immediately was put back in when I was logging it. I usually stick with the same gas station (Exxon) because I've had very good luck with it.
Good to know now though!