Well I just picked my Sienna up from service at Toyota and the Tranny fluid was perfect! Brakes
, oil color, tires
, e'thing is fine so she is no worse for the wear towing 6000 miles in 100+ temps up and down hills. The temp gauge never moved and they said 3000 RPM's wont hurt a thing and to use 5th gear only when at cruising speed on flat ground so the tranny isn't constantly shifting which I was already doing. Now I feel better.
Thanks for all the info! I love this site!! Need to make a donation as soon as I figure out how since I have learned so much and did find Tabitha here.