George in San Diego Posted March 20, 2013 Report Share Posted March 20, 2013 I have had my LS for a few months. Previous owner ran 100LL exclusively. I'm using 91UL. Last week I noticed the right fuel cap now turns so tight I can't move it by hand anymore. Took it apart to inspect and all I can make of it is somehow the tolerance has become less where the round male-female parts come together. It's just plain too tight. Since most of you run unleaded gas I wondered if anyone else has had issues with the gas caps becoming virtually inoperative. The left one still works but it's getting tight too. -George Link to comment Share on other sites More sharing options...
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