Chevy HHR Network

Chevy HHR Network (https://www.chevyhhr.net/forums/)
-   Fuel Economy - Hypermiling (https://www.chevyhhr.net/forums/fuel-economy-hypermiling-47/)
-   -   coasting (https://www.chevyhhr.net/forums/fuel-economy-hypermiling-47/coasting-24702/)

solman98 08-06-2009 12:24 PM


Originally Posted by ChevyMgr (Post 402645)
I think it's allowed in coastal states on coastal highways.

:lol:

IgottaWoody 08-06-2009 07:55 PM

How are they going to know? Maybe a prism on a stick to see where your shifter is selected....

Brwbier 08-06-2009 08:17 PM

Most cars can shift between nutral and drive without touching the button, it's been this way for 20 years.

Marcruger 08-12-2009 04:22 AM

I remember seeing something in the "tech" section of Road & Track a while back on this subject. They asked some manufacturers to answer a reader's question about shifting into neutral to save gas while coasting. If I recall correctly, they indicated that it wasn't a good idea, either moving or stopped. In a manual transmission car, the point was made that you may get into an emergency where you'd need the power/control and not have it while fumbling to get back in gear. In an automatic it was noted that the wear you'd put on the transmission/shift linkage would be much more costly than the gas you would save, if you'd get any gas mileage advantage at all. I am guessing that the internal parts have to rev-match when you get through coasting and drop back in gear. I also recall discussion of how certain cars actually rev higher in neutral than in gear with your foot off, so any gas mileage improvement may be an illusion. I am no expert at this, but someone may want to ask GM their take on it. God Bless, Marc


All times are GMT -5. The time now is 11:09 AM.


© 2024 MH Sub I, LLC dba Internet Brands