Dear Car Talk: I’ve been reading about a device called Fuel Save Pro that plugs into my car’s OBD II port under the dashboard. It says I can save 15% to 35% on fuel costs by letting this device ...
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4 fuel-saving devices federal tests say don’t work
So, you’re cruising down the highway, feeling pretty good about your fuel efficiency. Maybe you’ve even splurged on one of those trendy fuel-saving gadgets, convinced it’s going to cut your gas ...
NEW ORLEANS — The TruckWings tractor-mounted aerodynamic device, which closes the gap between the cab and trailer, showed a 6.2% improvement in diesel truck fuel efficiency and a 5.2% improvement for ...
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