Though the information below is 6 months out of date, I thought it might be interesting to see how fuel prices vary in this corner of the country.
After visiting SAAC-46 last summer, we continued to drive our '19 GT350 on what became a 4100 mile road trip. The goal was to minimize the time on freeways and prioritize two-lane twisty back roads. We started here in Idaho, drove the scenic route to Sonoma, north up Highway 1 to the Washington Peninsula, to Seattle for a visit with my daughter, then east along the "High Line", including a Columbia River crossing on the Inchelium-Gifford Ferry, across to North Dakota to celebrate my nephew's 20-year Air Force retirement at Minot AFB and finally back home.
We typically stop at brand-name stations and always use Premium fuel. I routinely track my fuel stats, so I summed them up for this trip:
Location Avg. Max Min
Overall $4.34 $5.20 $3.60
California $4.89 $5.20 $4.70
Wash $4.51 $5.07 $4.30
Oregon $4.23 $4.36 $4.00
Montana $3.92 $4.59 $3.60
ND $3.75 $3.75 $3.75 (Only 1 fuel stop in North Dakota)
Idaho $4.05 $4.57 $3.70