The bigger and stronger, the better. While some editors were disappointed in the appearance quality of the plastics on the big 's instrument panel, the meaty armrests came in for special praise. It feels substantial in your hand. It used less than a half quart of oil over 12,951 miles, and at the 15,000-mile service the brake linings checked out with more than 75-percent friction material remaining. Charge-air cooling promotes turbocharger efficiency by increasing the density of the intake air. For the '01 model year, and answered the call with distinct heavy-duty pickup lines of their own.
As such, it's praised for reliability and has been regarded as a particularly economical variation of the engine. Whatever situation presents itself, whatever challenge arises, the tool has the wherewithal to get the job done. Potential buyers were immediately concerned with regard to the Duramax's aluminum heads, and for nearly a decade owners of competitor's pickups would gripe about their distrust for the alloy heads. On normal roads, the ride quality is palpable. For a gas engine, the 8. .
In the latter mode, the transmission will automatically downshift every time the driver taps the brakes when descending long, steep grades--a big help when hauling heavy loads. It's been said you can never be too rich or too thin. Besides the traditional workers and tradespeople who needed a heavy-duty truck, white-collar business people and professionals were trading up for personal use in much the same way they opted for stainless-steel commercial kitchen appliances and customized component electronics. Both engines share a 4. This is one heck of a hauler that makes child's play out of heavy loads and messy launch ramps. While the engine produces a considerably lower 360 peak horsepower and 380 lb-ft peak torque, General Motors possesses the powerful 6.
With the Duramax, high altitude has no perceivable effect on performance. In order to provide loyal customers with a sense of reassurance, the factory warranty was extended to cover the new injectors for up to 200,000 miles. The mid-range passing acceleration offers confidence not many diesels can match. However, head gasket failures or other related concerns for that matter are no more frequent on the aluminum headed Duramax diesel than other competitor's cast iron headed engine. These characteristics are favorable in truck applications.
The Silverado Extended Cab has the widest-opening doors in its class, and the rear seatback is angled for comfort, something the F-150 and Tundra can't match with their church-pew upright rear seatbacks. An electronic throttle eliminates any direct noise path from the engine to the cabin. For weekend activities that include towing on a regular basis, I can't imagine a better tool to get the job done. This gearbox, normally associated with medium-duty big rigs, offers electronic shift-timing control and quiet-running helical planetary gearsets. Although it might not be the best for running errands around town, the 8. The result is near-Viper-like gobs of grunt 520 lb-ft at 1800 rpm , more than ample to coax a 5631-pound truck to speed. In fact, the engine was manufactured until 2009 for motorhome and various marine applications.
For this application, the valves are upgraded and the seats are hardened to handle the higher temperatures and lack of natural lubrication. In America, we can add one more item to that refrain: You can never have too many power tools. Not only has the head design proven reliable, but other manufacturers have begun to employ aluminum alloy cylinder heads on their diesels in order to benefit from the significant weight saving. Many freeways and interstates are paved with concrete, and, in time, the sections buckle and warp due to heating and cooling cycles. Moreover, the engine makes peak torque at a reasonable, practical 3,200 rpm. New seats and a redesigned center console also enhance interior comfort. Both and edged toward the work-truck side of the equation, offering ever higher payload, G, and tow ratings.
There's a promise implicit in its steely mass. The engine was only ever been offered mated to General Motor's 4L85E four speed automatic transmission - a manual transmission rendition was never offered. On that note, this might be one of those engines you'll only want to start when you really need to. In the early '90s, rattled the status quo with its Big-Rig-Look and Cummins turbodiesel might. It delivers quite a bouncy, harsh ride unloaded, but that firm suspension also delivers surprisingly good handling characteristics. The Duramax employs the latest in diesel technology, including highly efficient, low-emissions direct injection with a high-pressure common rail. This rig delivers a comfortable 400-mile cruising range--better than just about anything out there.
The only alternatives are throwing considerable ballast into the bed, slowing down to obstructionist speeds, or finding another route. General Motors was the last among Detroit's Big Three to develop a clearly defined big-pickup persona. . . .