May 23, 2011
Can I save gas by switching my car into nuetral while going down hill?
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Filed under Gas Conservation FAQ by on May 23rd, 2011. Comment. 
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Comments on Can I save gas by switching my car into nuetral while going down hill?
Not much but. Yes.
I have been told that modern fuel injection cars don’t use any fuel at all when coasting in gear, and running at idle will use some fuel to keep the engine running, so coasting in gear will save you a little bit rather than going into nuetral.
Only if it has a carburetor
You really want to do this dangerous maneuver to save a few cents on gas? Think, my friend!
You may save some gas but it could put excess stress on an automatic transmission and excess stress on a clutch with a manual transmission. Best just to feather the accelerator pedal when there is no need to accelerate. Plus you may need to accelerate rapidly and you could forget to drop it into drive if you become startled.