I am seldom looking under the hood of my 2007 CRV and my wife's 2015 Highlander. I constantly check on the truck. Oil, transmission, coolant. Always looking for leaks. Currently the radiator or it's hoses(fairly certain the lower hose needs a re-clamp after all that last radiator stuff I posted) are leaking but not enough to stop operating correctly. I have not seen oil leaking. I replaced the sending unit myself about a year ago and it was not causing issues. The last time I had the oil changed I had the gasket on the pan resealed(I had the garage do it not me) because it was seeping. The engine doesn't smoke, and I love that. It is original to the truck and I have only put about 7K on it. 148 when I bought it and it is approaching 155. Which is why I was basically having to convince myself that it needed oil badly. Looking at the dip stick oil would deceptively be up in between the add 1 quart and full dots but only on one side of the stick(IDK! It was really throwing me off) so being nervous about it I was reluctant to pull the trigger, then when the guage and strange sounds began I started to realize I needed to get to the bottom of it. Now I am about 1000 miles off from next oil change. The longer I have the truck and do things to it the more I realize I can frett less and know to more confident. I love the truck and am always afraid of doing something that would destroy the engine or transmission or anything else. I plan to change the oil myself this time and want to switch to something like the Amsoil Z rod for high mileage engines, and likely thicker oil with more zinc as suggested by you fine folks. No Stabilizer with this change. I will be looking for oil burning more often now, confidently. I want to be doing more to my truck but our budget and time do not allow me to. I am often envious of what I see a lot of you all accomplish on your rigs. I am appreciative of all of your feedback. Will be posting next updates. ASAP.