Most of the 2015 Ford F-150's weight savings comes from its redesigned aluminum body, but even some of the truck's components have been trimmed to "add lightness." Here's a breakdown of where they found a few extra ounces in the oily bits.
Full disclosure; this infographic is provided by Ford, making it effectively a Ford ad disguised as education. But what can I say, it's also pretty interesting! Just pay attention to the asterisks; like every claim you read about the 2015 Ford F-150, many of these figures don't apply to each model.
Image via Ford