Questions: Overhang clearances at fuel islands.

What is the minimum height for the overhang structures at any diesel filling station for Class 8 and above motor vehicles in America? Are there any trucks with any loads that would not clear the overhang at a diesel pump island? How do trucks with oversize loads gas up?

The railroad industry in America calls clearances for trains with regard to RR infrastructure "loading gauge".

This has to do with designing tunnels and bridges with adequate clearances for trains and their loads as well as to design rail vehicles to fit existing infrastructures. Does trucking have such a "loading gauge" standard?
Probably not. Railroads own both their vehicles and infrastructure that their vehicles operate upon. Trucking companies unfortunately don't own their own roads, fueling facilities and truck stops also.

Truck drivers are at the mercy of various government entities state to state and nation to nation and various "outside-the-firm" business concerns they deal with along the way. Railroads on the other hand own their exclusive private rights-of-way and are in full control of the infrastructural environment in which they operate. It seems as everybody involved with motor freight transport is not always on the same page regarding the needs and wants of truckers. Automobile traffic never stands in the way of a train and trains never have parking shortages. Should trucks have their own designated lanes on highways?

 

No, the diesel nozzles are usually green. "Gas up" is a figure of speech. Refuel, IOW.
I miss those plastic mitts at diesel pumps. Truckers need to learn a little humor and lighten up.

 

I've always wondered why the sh_t at the bottom of the petroleum barrel is higher priced than even the more highly-refined gasoline.

 

Ask Trump to foot your fuel bill. He can surely afford it.

 

Must have not been a '79 Caddy with that fake GM diesel motor, essentially V-8 gas engine conversion.
The only decent diesel in any American light vehicle (4-wheeler in big-rig-speak) has been the venerable 5.9L Cummins TD Dodge truck.

 

Is diesel more widely consumed than even gasoline America-wide? Do all the big trucks, CAT tractors, power generators, boats, ships and trains collectively out gobble all the cars at the collective petroleum pumps?