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GmPht


GM discontinues the parallel hybrid Silverado and Sierra trucks

2006 GMS Sierra Parallel Hybrid Truck A few years back General Motors silently introduced the PHT versions of the Chevy Silverado and GMC Sierra pickups. The parallel hybrid trucks (PHT) had GM's first cut at a mild hybrid system. Unfortunately, they never provided much fuel economy benefit only giving about 2mpg more than a standard truck. Like the system used on the Saturn Vue and Aura, it can't move the vehicle on battery power alone. The roughly 3,000 examples that were sold mostly went to fleet users such as contractors. The biggest draw ... Read more →

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