2012 rt limited thermostat and catalytic converter

[meathead1978]

highway speeds my temp gauge drops to c my gas mileage has decreased and I smell gas oil is fine

also I hear a chatter from exhaust on light throttle any one have issues with catalytic converter or thermostat?

[DrewNJ]

I replaced the thermostat on my 12' RS last winter as it was sticking open and over cooling.

Sent from my SCH-I545 using Tapatalk