I don’t think so. Been living in Seattle for almost 8 years, spent a lot of time in CA and Oregon as well. The only time I ever heard word “petrol” was in british media.
I'm in Alberta, aka North Montana. Can confirm Diesel is big here, tho there is arguably a practical need.
There is some anecdotal story about how Chevy had a batch of diesel Colorado trucks and they sold out couple hours hour they made them available online.