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Re: [Mgs] Overdrive Numbers

To: Paul Hunt <paul.hunt1@blueyonder.co.uk>
Subject: Re: [Mgs] Overdrive Numbers
From: Howard gentry <zymmer4@yahoo.com>
Date: Mon, 14 Jan 2008 08:58:12 -0800 (PST)
YEPPERS,
     The O/D on my 1976 B tourer really added about 3
mpg on the open road at 80 MPH. I considered that a
wonderful thing.:-)
Howard Gentry
1974 B-GT
1976 B tourer.

--- Paul Hunt <paul.hunt1@blueyonder.co.uk> wrote:

> There's been quite a shift in perception since,
> then, and that must have 
> been the view for the whole of MGB production i.e.
> nigh-on 20 years.  From 
> what I hear from that side of the pond now the
> common view now is that 
> overdrive is a very good thing for driver comfort
> and for the engine.  The 
> fuel issue is barely mentioned, in fact it is often
> said that overdrive 
> makes no difference to mileage.  I don't believe
> that to be the case, by the 
> very fact that the engine is turning slower and
> giving less bangs per mile 
> and per minute you must be using less fuel, unless
> you have to drive with a 
> larger throttle opening to maintain a given speed in
> OD 4th as straight 4th, 
> which certainly isn't the case on any MGB I have
> driven.  If one accepts 
> that you get better mileage in 3rd and 4th, one must
> also accept that one 
> gets around half that improvement in OD 4th compared
> to 4th.
> 
> PaulH.
> 
> ----- Original Message ----- 
> > Gasoline here was around $0.25/gallon in the 60's,
> sometimes cheaper 
> > during "gas wars".  It didn't hit $0.60/gallon
> until the oil shortage in 
> > the mid 70's.  With cheap fuel available the
> buyers were making the value 
> > judgement between saving perhaps $0.0015/mile on
> fuel cost or paying up 
> > font an additional 2% for the purchase price of
> the car.
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