By the way, the commercial traveller is not paying the displayed prices on motorway service stations. He will have a company card with a pre-agreed price centrally negotiated by his company with the fuel provider company.
We have fuel cards but are still advised to use bunkering sites or sites off the motorway network as whilst the price is still lower than the advertised amount at an MSA, it’s still considerably more than the other options.
Being a pedantic, it’s 1% although at the company I work for its more like 15%, we have a mother and daughter (along with dad) along with a husband & wife, along with a few others.99.3% of HGV drivers are male.