2015 Chevrolet Silverado 2500HD LTZ First Test
7500-Pounder Has Refined Interior, Does 0-60 in 7.2
The 2015 Chevrolet Silverado HD has been a work in progress for at least a few years. It began with redoing everything under the skin: frame, suspension, the bones of the truck. Then, for 2014,Chevrolet redesigned everything else: exterior, interior, and drivetrains. We got our first taste of these changes at last year's Truck of the Year competition. For 2015, Chevrolet has applied all the changes it made to the ½-ton truck to its Heavy Duty line.
The most notable and welcome change with the Silverado HD is the same as in the 1/2-ton: the interior. Everything about the interior is leaps and bounds better than the last generation Silverado's. Material quality is top notch and incredibly comfortable. Those hard, flat seats are long gone, replaced with seats that are more than up to any long haul. The dash and center stack changes made in 2014 carry over to the 2015 HD. The big 8-inch screen with MyLink and IntelliLink not only looks great, but also is very user-friendly. And Chevrolet didn't address only the things you can see and touch in the interior; it also worked on what you hear, or in this case, what you don't hear. The interior of the Silverado is probably one of, if not the quietest I have ever experienced in a truck. Chevrolet accomplished this by using triple-sealed, inlaid doors and hydraulic body mounts.
Another massive improvement is the Silverado's ride quality. The porpoising or bucking that most truck owners just live with has been greatly improved. It's still there, but not near as bad as it used to be. The HD isn't quite as smooth as the 1/2-ton version, but that's because the HD's suspension is set up to handle a wide range of hauling and towing needs. At the event we sampled how the Chevrolet handled hauling a large fifth-wheel, specifically, how the truck managed hills and maintained a constant speed with the cruise control set. The cruise control works in conjunction with the exhaust brake and auto grade braking system to help maintain a constant speed whether going up or downhill. The new system worked flawlessly, never letting the Silverado get ahead of itself, always keeping the driver feeling safe and in complete control.
After logging almost 500 miles (on one tank of fuel, mind you) driving back from Arizona, we took the Silverado HD to our test facility to run our standard barrage of instrumented tests. We opted to drive a Duramax 6.6L V-8 turbodiesel away from the event, instead of the Vortec 6.0L V-8, and despite this truck's 7500-pound curb weight, it put down some really good numbers. We hit 60 mph in 7.2 seconds and finish the quarter mile in 15.6 seconds at 86.8 mph. That's about half a second faster across the board compared to the last diesel Silverado 2500 4WD LTZ Crew Cab we tested.
I spent a lot of time behind the wheel of the 2015 Silverado HD, and the biggest surprise about this truck is how un-truck-like it is now. Not that long ago, trucks were penalty box vehicles. No one wanted to drive them unloaded because the ride was so bad, but that's all changed. I'm not saying this truck rides like a luxury sedan, but the improvement in ride quality, sound insulation, and interior refinement is simply amazing. Plus, you can still load the box with 7300 pounds of whatever or tow a 23,000-lb fifth-wheel with no problems at all.
|2015 Chevrolet Silverado 2500HD LTZ|
|PRICE AS TESTED||$61,310|
|VEHICLE LAYOUT||Front-engine, 4WD, 6-pass, 4-door pickup|
|ENGINE||6.6L/397-hp/765-lb-ft turbodiesel 32-valve V-8|
|CURB WEIGHT (F/R DIST)||7500 lb (59/41%)|
|LENGTH x WIDTH x HEIGHT||239.5 x 80.5 x 78.2 in|
|0-60 MPH||7.2 sec|
|QUARTER MILE||15.6 sec @ 86.8 mph|
|BRAKING, 60-0 MPH||134 ft|
|LATERAL ACCELERATION||0.70 g (avg)|
|MT FIGURE EIGHT||29.5 sec @ 0.55 g (avg)|
|EPA CITY/HWY/COMB FUEL ECON||N/A|