The normal speed limit on the highway.
65
65
60
If you're talking about off-highway dump trucks - which are heavy equipment, and not highway vehicles, then no.. they use their big tires in that capacity.
Laws on this vary by jurisdiction. In order to answer this, we'd have to know WHERE you're referring to.
For brand new heavy duty trucks, try Heavy Duty Trucks USA. Trucks Junction and 1 Used Trucks both sell used heavy duty trucks online for a cheaper alternative.
Diesel used in non road vehicles like tractors and heavy equipment. It is dyed red and is illegal to use in highway vehicles like trucks.
The services offered by Freightliner trucks are the sale of heavy duty trucks, parts and service. They manufacture the chassis, heavy duty trucks and semi-trailers.
You can find heavy trucks anywhere from searching online to going into a car dealership/shop itself and looking around at different heavy trucks that they have available.
Diesel used in non road vehicles like tractors and heavy equipment. It is dyed red and is illegal to use in highway vehicles like trucks.
Thunders are good Independent trucks are good but are very heavy i don't think thunders have 20 dollar trucks and i wouldn't want heavy trucks
Here is a site with info on used heavy duty trucks and even trucks for sale: http://www.1usedtrucks.com/heavy_truck_subcategory.php. You can also check Craigslist for trucks in your area.
The Ford F-150 is consistently the highest rated truck with respect to fuel mileage, obtaining nearly 25 mpg on the highway when it is not carrying heavy loads.