I've noticed that spark plugs 5 and 6 appear to be wet. Plugs 1 through 4 are bone dry and sooty looking. I haven't noticed bubbles in the radiator. This afternoon, I'm planning to get the truck our of the garage and get it up to temp, so the thermostat opens and I fully circulate the coolant. The exhaust smells strong, but not like gas or coolant. I'm wondering if it's just the difference between a catalytic converter and straight exhaust.
