Quote:
Originally Posted by shaderman
Thanks for all the information Lotus. I've been filling 95% of the time at the same station, and this has been happening for months now. The conditions which seem to cause it most are cold weather followed by warmer humid weather.
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The only things that 87 octane is going to do for you is to get you fuel out of a different storage tank at your regular station, and perhaps cause knocking/performance issues. It's a half-good/half-bad suggestion.
Just for giggles, do as Lotus suggests and run your tank down. Refill at a station that you do not normally frequent - a Top Tier 91/93 octane gasoline such as Chevron, Esso, PetroCanada, Shell, or Sunoco, and continue to do so until you run through a weather period such as you describe. There's always the possibility, slim as it is, that your usual station has contaminated fuel or a leaking storage tank.