> they still weigh more than diesel so I assume they'll pay more at the scales I'm not sure what you mean here. In the US, scales are used to ensure complianc

> they still weigh more than diesel so I assume they'll pay more at the scales I'm not sure what you mean here. In the US, scales are used to ensure compliance with axle load limits, not to determine any costs. In any case, since they don't need the weight of a diesel engine, transmission, fuel tanks, or emissions systems I'm not sure how the weight balance will work out.