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GM doesn't offer an engine with Active Fuel Management paired with a manual trans, and I've read a number of times that it is not possible. Why?
 

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GM doesn't offer an engine with Active Fuel Management paired with a manual trans, and I've read a number of times that it is not possible. Why?
I don't believe any manufacturer offers that technology with a manual trans.

I think it's because many conditions have to be just right for the cylinder deactivation to take place and be effective. These conditions are more likely with a computer regulating the engine, fuel flow, etc. and an automatic transmission between the driver. With a manual trans, the computer has much less control of these factors, and a human driver would alter these conditions more easily with a manual.

Not a great job of explaining I know, but that's how I understand it.
 

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Because the clutch is direct coupling.

You'd feel that thing shaking all up through the ****pit.

With an auto they can use the torque convertor to dampen the shakes.
 
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