Six speed automatic gearboxes will be available on 75 percent of Chevrolet cars, trucks, SUVs and crossovers for 2011. Compared to the four speed automatics, the new transmissions offer a fuel savings of up to four percent, while enabling the vehicles to offer smoother, more responsive performance.
“Our advanced six-speed transmissions offer customers wide-ranging benefits,” said Charlie Klein, Director, GM Global Mass, Energy and Aerodynamics, “including reduced cost of ownership, improved vehicle performance, lower CO2 emissions, and a lesser dependence on foreign oil. As such, the wide availability of six-speed transmissions is a real advantage for Chevrolet customers.”
"Six-speed transmissions inherently offer increased flexibility over four- or five-speed transmissions to fine tune the gear ratios to specific engine characteristics and vehicle performance targets. In the case of the Cruze Eco, we have developed a unique combination of speed gear ratios and a final drive ratio that provide very good vehicle launch and low-speed performance along with three overdrive speeds (fourth, fifth and sixth) which enable excellent highway fuel economy and passing performance,” said Mark Gilmore, global engineering director for manual transmissions.
Chevrolet’s vehicle range offers General Motors families of six-speed transmissions, destined for front-wheel, rear-wheel and all-wheel drive cars. The full list of 2011 Chevys available with six speed manual or automatic transmissions includes:
1. Avalanche Standard six-speed automatic
2. Camaro Standard six-speed manual, available six-speed automatic
3. Cruze Standard six-speed manual, available six-speed automatic
4. Corvette Standard six-speed manual, available six-speed automatic
5. Equinox Standard six-speed automatic
6. Express Available six-speed automatic
7. Malibu Standard six-speed automatic
8. Silverado Available six-speed automatic
9. Silverado HD Standard six-speed automatic
10. Suburban Standard six-speed automatic
11. Tahoe Standard six-speed automatic
12. Traverse Standard six-speed automatic
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