4KQ Feulishness

[quk@sievers.com (Phil Payne)]

In message <9609161236.AA26418@hunch.zk3.dec.com> Andrew Duane USG/PE writes:

> About 2 years ago, Scientific American had a great article on 
> the future of fuel economy in cars/trucks/etc.
> 
> One of the little things they mentioned is that AWD can actually
> save fuel, by reducing hysteresis drag. This is the drag of the
> tires deforming on the pavement, and is proportional to the fourth
> power of the power being applied to the tire. At highway speed,
> this accounts for a noticable percentage of total drag.

Audi have always said this.

FWIW - allowing for my larger gallons - I get around 29 to 31 mpg from my ur-
quattro.

Around 25mpg in US terms, running on 98 ROZ leaded.

--
 Phil Payne
 phil@sievers.com
 Committee Member, UK Audi [ur-]quattro Owners Club