Diesel's national average price tumbled to its lowest point since 2009 this week, falling 5.9 cents to $2.723 per gallon, according to the July 27 report from the Department of Energy. Gas also fell 5.7 cents.

Freight volumes are projected to increase by nearly 29% over the next 11 years, according to a report released by American Trucking Associations on July 27.

Fiat Chrysler Automobiles NV has agreed to repurchase more than half a million vehicles - most of them Ram pickups - as part of a settlement with the federal government that also includes a record $105 million penalty for delaying action on safety defects in its vehicles, Bloomberg News reported.

The Senate is suddenly contentious on amendment issues that threaten to stall or derail the passage of a highway bill before it can be sent to the House prior to the expiration of funding authorization on July 31. Here's a look at what's ahead for trucking on Capitol Hill this week.