Keep your old gas cap when you get that brand new locking one. We have had two different neighbors in CG's this year experience problems with new gas caps. After having them on for awhile their "check engine" light came on. The code reader indicated it was a problem with the aftermarket gas cap.
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Full Time in 2017 Newmar Ventana 4369
pulling a 24' enclosed (Mini Cooper/Harley/Kayak)
(traded 2014 Thor Challenger)
US Army 70-73 Retired LEO
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