Neutral Coast Mode... this is how we roll

Neutral Coast Mode is a fuel saving feature that you will see as an option for some configurations and a requirement with other powertrain combinations. The feature can only be used with an Automated Manual Transmission (AMT) and is only active in Cruise Control while in the top gear. The intent is to optimize engine idle.

What this means is that while encountering a gentle downhill slope, the transmission moves from Drive mode into Neutral mode during coasting. This disengages the driveline and allows the engine RPM to drop. Since RPM is a major component of fuel usage, dropping closer to idle RPM saves fuel. All of this is accomplished without driver intervention, and the instant throttle or brake are applied the transmission takes over utilizing the correct gear for the conditions.

The feature will disengage if the driver cancels Cruise Control, and if the Cruise high set speed or the Cruise low set speed have been exceeded. Additionally, Neutral Coast will be overridden by safety feature protocols such as Adaptive Cruise Control. This feature is known by other naming conventions: named SmartCoast™ when paired with a Cummins engine, Fuel Efficient Coast™ when paired with a Navistar engine, and Neutral Coast™ when paired with a PACCAR engine. For customers who are serious about fuel efficiency, this product will contribute to their success.

And now...

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Believe It OR Not

There never was a national speed limit of 55 mph. The States determine speed limits.

On January 2, 1974, due to an energy crisis, President Richard M. Nixon signed a law prohibiting the Federal Highway Administration from approving highway projects in any State having a maximum speed limit over 55 mph. The States could retain higher speed limits if they wished, but at the cost of losing Federal-aid highway funding. As a result, all States complied with the legislation.