Ford F-150 adds engines, subtracts weight in 2015 models

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Ford Motor revealed more details about how the 2015 F-150 pickup is designed to achieve better fuel economy, but the company didn’t disclose fuel-economy estimates.

Ford says the F-150 will be at least 700 pounds lighter than that of the previous model year because of the use of military-grade aluminum alloy in the body and the cargo box, as well as the use of high-strength steel. The new materials replace conventional steel, which is heavier.

Ford also added two new engine options, including a 2.7-liter EcoBoost V6 engine that cranks 325 hp and comes with standard automatic stop-start technology, which is a feature that shuts off the engine when the vehicle is at a stop and restarts the engine when the brake is released. Stop-start technology is designed to reduce fuel consumption and emissions.

The standard engine for the 2015 F-150 is a new 3.5-liter V6 that generates 283 hp.

Engine options that carry over from the 2014 F-150 lineup are a 3.5-liter EcoBoost V6 powerplant and a 5.0-liter V8 engine.

The company didn’t disclose availability or pricing.

Automotive-industry experts told Consumers Digest that the use of aluminum could help to improve estimated fuel-economy ratings to about 18 mpg for city driving and at least 24 mpg for highway driving.