Put your factory gas cap back on and make sure it's tight.
Nothing proven but I have been warned to not use any of the fuel treatments. It can mess up the EVAP system connected to the fuel tank. Run that tank out and fill back and your SES light might go away.
Good luck
Nothing proven but I have been warned to not use any of the fuel treatments. It can mess up the EVAP system connected to the fuel tank. Run that tank out and fill back and your SES light might go away.
Good luck