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Re: AWD und FWD



><<First, define "superior".  It <AWD> adds weight and rolling resistance,
>thereby slightly increasing fuel consumption.  Not superior in terms of fuel
>economy.>>
>
>I know this doesn't make much rational sense but...According to a chapter in
>a book "Audi Quattro" about the development of quattro awd, it is stated (I
>will get exact quotes if anyone desires) that Audi engineers were initialy
>confused as to why the awd version of the test mule (an 80...aka 4000 I
>think, maybe even a fox?) got better mileage than the fwd version. Upon
>researching this, it was found that rolling resistance of driven wheels was
>lower than that of un-driven wheels, enough that the mileage actualy
>increased slightly, not decreased. Another rather strange quattro reality I
>guess...less (fuel) for more (weight and mechanical drag)? Of course YMMV
;-)



I think that I said (and quoted) that 3 years ago................


Later!


Eric Fletcher S.O.C.
'87 5KCSTQIA2RSR2B
St. Louis, MO

STEADIRIC@aol.com