The road up from Hinton to Grande Cache will exercise your engine and brakes- plenty of passing lanes though so take it slow if you're coming this way. Lots of gas equipment and associated construction but the road is open and well paved.
The tourism office in Grande Cache is very helpful, and they were also right about gas prices: it is a few cents higher in BC compared to AB. Spend some time in the visitor center.
We topped up in Grand Prairie, and also enjoyed a nice Mediterranean meal at Tito's.
Dawson Creek is the last large town but St. John's also has a Walmart. DC has a nice self serve car wash where you pay by the minute and they're very reasonable and honest. The visitor center there has lots of information and a nice history museum attached for just a few dollars admission. There's a nice walker friendly downtown area nearby.
The road is newly paved partway from St John's to Pink Mountain, though in the evenings there's heavy fog in the valleys with just a few feet of visibly. We were going 30mph in places- but had beautiful sunset views. No large animals but plenty of signs. Plenty of heavy trucks and gas production.
Let's see what today brings.