hi everyone. I am driving from MI to Wa, and then on to Portland OR in the early part of August. I have a lot of time for this trip (almost a month), so I am wondering about the most scenic (yet easy on my geo ie less miles and steep elevations) enjoyable way to take. I'd like to spend about two weeks on the road, and the rest of the time in Portland with friends. In the past I have stuck to i-80 and i-90 for most the way out there. Does anyone have any good suggestions for state highways or lesser travled roads that still have facilities within reasonable distances? (only have an 8 gal gas tank... will that matter though since I get better milage?) ALso, if anyone else has tripped in a metro-- did you experience problems in the mountains? any recs/ preventative advice?

cheers

m