loud start up/ milky oil in filler tube only

My first guess is about the noise: You are using an aftermarket oil filter without a proper anti-drainback feature, allowing the oil to drain back down to the oil pan. Get a good quality oil filter with anti-drainback. Second thought, about the milky deposit in the oil filler: Check the PCV saystem, the valve may be faulty. Also, be sure that the thermostat is keeping the engine at the proper running temperature, which is about 195F. If you want to find a specialist, here's a directory link for you: https://repairpal.com/dodge-repair-in-owensboro-kentucky