It's an auxiliary fuel tank, most likely powering the trailer's refrigeration unit. By the 1920s, trucks were crisscrossing the country with fresh food such as produce.

Fuel Tanker Rear Ends Semi, ... The force of the impact pushes the semi forward and its trailer appears to flip over. As this happens, a fuel tanks ignites and sets off an explosion.

Police said a vehicle collided with the semi-trailer on northbound U.S. 75 near Midpark Road at about 4 a.m., which punctured the fuel tank and leaked a small amount of fuel onto the road ...

DADE CITY ― A tanker truck struck a semi-trailer truck nearly head-on Monday, killing a Zephyrhills man and shutting down a portion of U.S. 98 in Pasco County, authorities said.

The front left of the semi then crashed into several trees. After the collision, officials say the fuel tank the trailer was transporting suffered major damage, causing it to leak. The fuel tank ...

Yellow cloud erupts as fuel spews out of a saddle tank. It ignites an instant later. Saddle tanks will burst in impacts, and are often torn open if a truck just runs off a road and into a ditch.

SELMA, N.C. (WTVD) -- One fuel tanker rear-ended another Wednesday morning in Selma. According to Johnston County officials, the crash happened around 5:20 on Pollock Street (US-301) at the ...

A semi-truck jackknifed and punctured its fuel tank.At approximately 5 p.m. Friday, a semi fuel tanker jackknifed, puncturing its fuel tank.Crash Ramp EB I-80 t ...

A semi-truck jackknifed and punctured its fuel tank.At approximately 5 p.m. Friday, a semi fuel tanker jackknifed, puncturing its fuel tank.Crash Ramp EB I-80 t advertisement KUTV Salt Lake City ...