[Land-speed] Tires,Mileage,etc/non LSR ?

[NT788 at comcast.net]

Lets all save gas Then the price will go up! 
 -------------- Original message ----------------------
From: "Tom Bryant" <saltracer at awwwsome.com>
> My Firebird Trans Am does not have these creature comforts such as mileage
> calculators (my GMC does), but I keep an accurate record of fuel used and
> miles traveled. I don't drive at 55 mph except to get to 70 or 75 mph where
> I cruise. In general it is 17-18 mpg around town and 26+ on the highway. I
> can't tell you what it is a 55 mph because I would rather get a little less
> mileage and get there in a timely manner. I have been regurgitating what I
> have read, which is speaking more of smaller engines and cars, not from
> actual experience.
> 
>  I do not support the government telling us to drive 55 mph. Truck (three
> axles or more)speed limits in CA is 55 mph. I generally towed at 70 mph with
> my open trailer, but found with the enclosed trailer, anything over 60 mph
> rapidly reduced mileage. Things may have changed, but I know some nationwide
> trucking companies used to pay their drivers bonuses for keeping to the 55
> mph speeds so I would assume that there is fuel savings to do that. Again
> every vehicle has its optimum efficiency speed so there is not a blanket
> statement that applies to all. I do know that just as at Bonneville, over
> gearing will reduce performance.
> 
> Tom, Redding CA - #216 D/FCC
> 
> -------Original Message-------
> 
> From: Jon Wennerberg
> Date: 07/21/08 12:12:31
> To: DR MAYF;  land-speed submit
> Subject: Re: [Land-speed] Tires,Mileage,etc/non LSR ?
> 
> On Jul 21, 2008, at 3:01 PM, drmayf wrote:
> 
> Tom, Ed, all..
> 
> 
> mayf
> 
> Speaking to something that Ed mentioned a few posts ago -- the fuel
> computer display built into the dashboard.  On my '04 GMC pickup
> there's one of the computers, and I've checked the accuracy -- only
> to find it's a bit generous (when compared to my figuring of fuel
> economy).  A couple of mpg too generous, in fact.  The 'puter might
> show 25.4 mpg on a road trip -- and when I figure the number of
> gallons burned and the number of miles driven (using the readouts
> from the fuel stations and the corrected mileage shown on the
> odometer ) I'll get something like 23.9 mpg.  These numbers are close
> to the real world for me -- I do get mid-20's in my big pickup -- but
> the computer shows even better.
> 
> I drive at or below posted speed limits 99% of the time, use the
> cruise control as much as is possible, and don't do jackrabbit starts
> -- all of which contribute to good mileage.  Again -- YMMV.
> 
> Jon Wennerberg
> 
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