TO THE EDITOR:
Kudos to General Motors for engineering the most fuel-efficient half-ton pickup in the U.S., the 2020 diesel-powered Chevrolet Silverado, rated at 33 mpg highway ("Detroit 3 grows greener," July 29).
Unfortunately, this achievement is tempered by the disappointing news that GM has discontinued its two class-leading fuel-efficiency entries featuring internal combustion engines: in the sedan class, the Chevy Cruze diesel, rated 48 mpg highway (60 mpg by Consumer Reports), and in the SUV category, the Chevy Equinox and GMC Terrain, rated 39 mpg highway in two-wheel-drive versions.
Disappointing sales for these remarkably efficient and refined vehicles are due to a virtually nonexistent advertising effort. In many stores I visited, the salespeople were uninformed regarding these diesel vehicles.
Until electric vehicles gain widespread acceptance, GM should continue to lead the sedan and SUV categories in fuel efficiency by producing diesel-powered vehicles and guaranteeing their success with the necessary advertising campaign.
SEYMOUR R. ROSEN, Tallahassee, Fla.