Bipeflier wrote:
Despinte what "dodgeguy" says, engines with lots of miles on them, when worked hard will use some oil.
Keep an eye on it when towing and top it up when it gets a quart low (when checked cold).
Concur.
I've seen more than one engine burn some more oil when working harder.
Things get hotter, thus more gaps to lose oil, the oil gets hotter, the engine may be spinning 50% more per mile as the TV runs in a lower gear...all sorts of mechanisms.
AND- an engine with 120K miles on it burning oil...that's anything but rare.