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Autos - Cars > Nissan > Re: MPG improve...
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Re: MPG improves on PU with tonneau cover?

by willshak <willshak@[EMAIL PROTECTED] > Apr 26, 2008 at 11:02 PM

on 4/26/2008 7:27 PM D. said the following:
> who cares ! did you buy the cover for gas savings ?
>                            Dick
>   

Well, you care enough to comment. Dick is a good name for you.

> "willshak" <willshak@[EMAIL PROTECTED]
> wrote in message 
> news:fdGdnfbREb4_uY7VnZ2dnUVZ_q-jnZ2d@[EMAIL PROTECTED]
>   
>> on 4/25/2008 8:13 PM Paul said the following:
>>     
>>> willshak wrote:
>>>       
>>>> The beginning of this month I bought a soft tonneau cover for my 97 
>>>> Nissan PU, 2.4 l, 4 cyl FI, 62,500 miles. He's a good old boy and
looks 
>>>> almost as good as when he was new. I buy him a present every once in
a 
>>>> while. Last time it was a cat-back dual exhaust, and the time before 
>>>> that, a keyless entry system.
>>>> When I installed the cover, I had about 3/4ths of a tank of gas left.

>>>> Since driving it with the cover on, it seemed that my trip odometer
was 
>>>> getting a higher reading compared to my gas gauge than before. I
usually 
>>>> traveled 50 miles between the 1/4 markings on the gas gauge, winding
up 
>>>> with about 190 miles with about an 1/8th tank of gas left when I
refill 
>>>> it.  I got to 212 miles with about an 1/8th tank left. When I filled
the 
>>>> tank yesterday and made the MPG calculations from my last fill up, it

>>>> seems that I was getting 18.34 MPG. I rarely put more than 11-12
gallons 
>>>> in the 15-7/8 gallon tank. This time, it was 11.595 gallons.
>>>> Before the cover was installed, I was averaging around 16.5 MPG.  The

>>>> last time I filled up before the cover, I got 16.62 MPG. I haven't 
>>>> changed my driving habits despite the rising gas prices, or made any 
>>>> long trips, so it may be aerodynamics.
>>>> The next time I fill up, the MPG will be calculated with having the 
>>>> cover on for the entire period between fill ups, so we'll see what 
>>>> develops.
>>>> Watch the mpg drop and burst my balloon! :-)
>>>>         
>>> Some mpg savings is to be expected.
>>> You have eliminated the rolling low pressure drag zone in the bed and 
>>> created a boundary layer.
>>> The worst thing you can do is drive with the tailgate down, or off, or

>>> with one of those air gate things.
>>> However, to accurately determine the mpg, you will have to fill up the

>>> tank.
>>> "About" 1/8 tank is not good enough.  Your gas gauge is not linear, 
>>> either.
>>>
>>>       
>> I 'fill up' when the gauge gets 'down' to about 1/8th of a tank, not
just 
>> put 1/8ths of gas in the tank.
>>
>> -- 
>>
>> Bill
>> In Hamptonburgh, NY
>> To email, remove the double zeroes after @[EMAIL PROTECTED]
 
>>     
>
>
>   


-- 

Bill
In Hamptonburgh, NY
To email, remove the double zeroes after @[EMAIL PROTECTED]





 11 Posts in Topic:
MPG improves on PU with tonneau cover?
willshak <willshak@[EM  2008-04-25 18:24:57 
Re: MPG improves on PU with tonneau cover?
Paul <Paul@[EMAIL PROT  2008-04-25 19:13:03 
Re: MPG improves on PU with tonneau cover?
still just me <wheeled  2008-04-26 05:47:44 
Re: MPG improves on PU with tonneau cover?
willshak <willshak@[EM  2008-04-26 08:48:32 
Re: MPG improves on PU with tonneau cover?
"D." <wdstk6  2008-04-26 19:27:51 
Re: MPG improves on PU with tonneau cover?
willshak <willshak@[EM  2008-04-26 23:02:50 
Re: MPG improves on PU with tonneau cover?
"D." <wdstk6  2008-04-27 06:52:10 
Re: MPG improves on PU with tonneau cover?
LouieG <yada-yada@[EMA  2008-04-27 10:36:55 
Re: MPG improves on PU with tonneau cover?
Jim Yanik <jyanik@[EMA  2008-04-26 00:10:30 
Re: MPG improves on PU with tonneau cover?
"NissTech" <  2008-04-27 22:26:57 
Re: MPG improves on PU with tonneau cover?
"C. E. White" &  2008-04-28 09:01:27 

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tan13V112 Fri May 16 11:40:00 CDT 2008.