New Freightliner focus on DD15 fuel efficiency


Coronado and Argosy get Neutral Coast feature in Eaton Ultra Shift AMT models

New Freightliner focus on DD15 fuel efficiency
Freightliner is looking to save fuel

 

Freightliner has introduced an intelligent fuel efficiency package for its Coronado and Argosy models with Detroit DD15 engines.

The package, available with Eaton Ultra Shift AMT models, includes the Neutral Coast feature as well as an optimised rear axle ratio and targeted fuel-efficiency software calibration, and is suitable for trucks running at up to 68 tonnes.

Freightliner says its own tests using a Coronado B-double tautliner returned fuel economy improvements of 5 per cent, although customer results would be dependent on individual specification, load and route.

Freightliner Australia Pacific director Stephen Downes says the company’s engineers were excited to introduce the changes.

"We are always looking for ways to drive down costs for our customers, so we have been working very hard with Eaton to bring these changes to the Australian market to further improve our Detroit offering," Downes says.

"The upgrades that we have introduced are significant and we know our customers will appreciate the fuel efficiency improvements they will deliver."


Read how a Coronado was put to drought relief duties, here


Another upgrade benefit is a lower cruising revs at highway speeds, said to reduce engine noise in the cabin.

Freightliner says the Neutral Coast function of the Eaton Ultra Shift AMT enables the transmission to select neutral for short periods on modest gradients in order to save fuel by using the momentum of the truck.

The function will only operate if the driver has selected cruise control. 

"The upgraded transmission ECU also senses the combination weight and shifts accordingly by skipping gears and shifting early," Freightliner says.

"On steep grades, the transmission will shift down two or three gears to maintain momentum. The new rear-axle ratio is 3.73 and leads to a 150rpm reduction in 18th gear at 100km/h.

Operators also have the option of customising top speeds at load and empty to further improve fuel economy and safety.

 

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