>>  yesterday while driving up a mountain in Fort Stanton rec area in
Ruidoso, I was revisited by the buzzing alarm and flashing oil light.  I
have not seen this since the climb in the Rockies in 2007-2008.  The incline
isn't all that steep, but its consistent... and long. What does it mean?  I
have new oil, new filter, good levels... running 10W30...<<

  It means that you should be running with 20W50 weight oil like your
owner's manual recommends for most climates.  Check the temperature
chart.

  If you've been using 10-30 all this time, it's hard to believe that
you've heard that dern buzzer only a couple of times, especially in
the summertime.

George/ATL