Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Why is 'hard' braking bad for fuel economy ?

Cd · 11-08-2008, 10:17 PM

I have read several times that 'hard' braking and sharp corners are bad for your gas mileage.
Why is this ?

Is it just the fact that you have to accelerate once you have lost your momentum, or is there also some other factor.

Also, can you explain engine braking ?

I notice when coasting to a stop I will shift my automatic from neutral back to drive, and the car will shudder and suddenly slow as the engine 'catches ' and revs up.

Is this an example of engine braking ?

11-08-2008, 10:17 PM	#1 (permalink)
Cd Ultimate Fail Join Date: Feb 2008 Location: Austin,Texas Posts: 3,585 Thanks: 2,872 Thanked 1,121 Times in 679 Posts	Why is 'hard' braking bad for fuel economy ? I have read several times that 'hard' braking and sharp corners are bad for your gas mileage. Why is this ? Is it just the fact that you have to accelerate once you have lost your momentum, or is there also some other factor. Also, can you explain engine braking ? I notice when coasting to a stop I will shift my automatic from neutral back to drive, and the car will shudder and suddenly slow as the engine 'catches ' and revs up. Is this an example of engine braking ?