We live in Western Washington... and going to make a 4 day trip over to Yakima Valley Wine Country in Prosser for a little glamping.... Staying in an RV Park... But the main idea is to see how the XJ will do going over the mountains pulling our little Hitch and Haul trailer.... I reversed the Hitch so now the trailer pulls level... instead of downwards.... I took it into Express Lube and had a full service done... they told me the air filter looked great!! Glad I double checked... filter was full of dirty oil... so off to get a new one....