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Chevrolet Cobalt Real World MPG

304 messages,  Last post on Mar 24, 2012 at 5:39 PM

You are in the Chevrolet Cobalt Forum.

What is this discussion about? Chevrolet Cobalt, Fuel Efficiency (MPG), Coupe, Sedan

Messages Page 31 of 31

#301 of 304 Re: 06 Cobalt LS [pa356228] by tedlangley64v

Mar 16, 2012 (1:38 pm)

Replying to: pa356228 (Apr 23, 2009 11:58 pm)
Please see my Reply #296. No service station will put hydrogen into a tire because it will explode. They do put in nitrogen for a fee of $5 to $12 per tire. The benefit is that the tire pressure will vary less with changing temperatures beause pure nitrogen expands and contracts less than air, which is 80% nitrogen and 20% oxygen.

#302 of 304 Re: I'm new to this forum. I have a 06 Cobalt LS Auto. [laserblue] by tedlangley64v

Mar 16, 2012 (1:40 pm)

Replying to: laserblue (Apr 20, 2009 9:58 am)
That's a good point about a clean and waxed car. I keep my with a car cover and wax it 3x per year with Turtle Wax Blue Ice and I get 38 - 42 MPG always highway. Please see my post #296.

#303 of 304 extra nitrogen in tires, total waste of $ ! by elias

Mar 24, 2012 (5:31 pm)

Replying to: tedlangley64v (Mar 16, 2012 1:38 pm)
just so you know.. there is no benefit to extra nitrogen in a cobalt tire or any passenger care tire, except for lining the wallet of whoever sells it. the idea of hydrogen in the tire is horrifying and reminds me of the JATO story legend ...
 
btw, measure distance-driven/gallons to see the real mpg and compare with dashboard mpg-meter... i bet you'll find the dashboard usually off by the same percentage and reading a tad high in your case.
 
I always liked cobalt styling! almost bought one but waited for cruze. :}

#304 of 304 smooth paint vs smooth wax finish for mpg (!) by elias

Mar 24, 2012 (5:39 pm)

Replying to: tedlangley64v (Mar 16, 2012 1:40 pm)
i avoid waxing cars...
let's just say/suppose it's for mpg reasons: i figure the weight of the wax costs more mpg than the smoothness/airflow at such low speed.
but seriously folks, the clearcoat under the wax is just as smooth as a layer of wax on top of it, isn't it ?
 
for aircraft the weight of the paint really matters - iirc, some aeronautical painter discovered a way to use thinner layers of paint... added up to hundreds of pounds per aircraft... less weight, saves the airlines BIG $ on fuel.
 
happy travels...

Messages Page 31 of 31

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