The Solstice and the SKY are very picky about the gas cap being correct, using a non-OEM cap will result in an EVAP Leak and ultimately a Check Engine Light.
$38.99
This GM Fuel Filler Cap (GM Part# – 19432733 and 10372242) Is the engineered replacement for your GM vehicle. This genuine part is more reliable at sealing the fuel filler, and preventing CELs for Evap Leaks than generic replacements.
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