J.P.: To save fuel, is it best to try and force the system to run in its electric-only mode for as long as possible? Why or why not?
T.O.: You cannot "force" the system to run electric-only, but you can modify your driving behavior to maximize electric-only operation. This may not necessarily result in the best fuel efficiency.
A better means is to use the "ECO gauge", which indicates when optimal fuel efficiency is achieved. It's the best indicator of optimal driving behavior. The hybrid system is designed to enhance fuel efficiency and the driver can help, with the encouragement of the ECO gauge.
J.P.: Are there any changes in driving habits required to maximize fuel mileage in a hybrid like this?
T.O.: Smooth acceleration and deceleration are key. Ideally, at a stop, the driver should maintain his foot on the brake rather than creeping to the line. Electrical devices continue to use energy, so if the driver wanted to truly maximize all systems, he or she could choose to turn off electrical loads.
J.P.: I want to throw an intake, dual exhaust kit and a snowplow on my Silverado Hybrid. Can I?
T.O.: The engine and hybrid drive calibrations are critical to the optimal operation of the Two-Mode system, and modifications are not recommended.
As an example, the exhaust system on the Two-Mode hybrid is designed to support the Active Fuel Management system. It uses a specific style of resonator and is tuned to operate in 4 and 8 cylinder modes. Exhaust systems are also designed to maximize underbody airflow characteristics.
Modifications of the exhaust may impact the noise, vibration, harshness and aerodynamics of the vehicle.
photo:General Motors
T.O.: You cannot "force" the system to run electric-only, but you can modify your driving behavior to maximize electric-only operation. This may not necessarily result in the best fuel efficiency.
A better means is to use the "ECO gauge", which indicates when optimal fuel efficiency is achieved. It's the best indicator of optimal driving behavior. The hybrid system is designed to enhance fuel efficiency and the driver can help, with the encouragement of the ECO gauge.
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J.P.: Are there any changes in driving habits required to maximize fuel mileage in a hybrid like this?
T.O.: Smooth acceleration and deceleration are key. Ideally, at a stop, the driver should maintain his foot on the brake rather than creeping to the line. Electrical devices continue to use energy, so if the driver wanted to truly maximize all systems, he or she could choose to turn off electrical loads.
J.P.: I want to throw an intake, dual exhaust kit and a snowplow on my Silverado Hybrid. Can I?
T.O.: The engine and hybrid drive calibrations are critical to the optimal operation of the Two-Mode system, and modifications are not recommended.
As an example, the exhaust system on the Two-Mode hybrid is designed to support the Active Fuel Management system. It uses a specific style of resonator and is tuned to operate in 4 and 8 cylinder modes. Exhaust systems are also designed to maximize underbody airflow characteristics.
Modifications of the exhaust may impact the noise, vibration, harshness and aerodynamics of the vehicle.
photo:General Motors