When towing my travel trailer through the mountains I noticed my engine oil temps getting up to about 260F. Fast forward a couple weeks after being home and I hear the engine ticking more loudly than usual. I check the oil and it's over a quart low. I'm not sure if there is a connection between oil temps and burning oil (using full synthetic), but until this trip our Durango hasn't used any oil between changes. Would an engine oil cooler help things out? I notice Mopar has an engine oil cooler for a Durango. Anyone add this to their RT?