"John Clear" wrote in message
...
In article .net,
cavelamb himself wrote:

I personaly can't argue either way.

Both answers seem to have merit - and then not...

But those webbed tailgate thingies have GOT to increase drag.

Don't they???

They re-visited the tailgate issue in a later episode, and re-busted
tail gate down being more efficient, but found that the mesh thingie
increased mileage. Still questionable since they were doing the
tests on public roads with traffic.


It's hard to measure small differences in fuel economy even when you are
running a vehicle over the same cycle on a chassis dyno with a million
dollars worth of analyzers- trust me on that one - I've looked at the
results of thousands of emission tests over the years.

Trying to see the difference on public roads in traffic? You might as well
throw some dice for anything less than 10 or 20 percent.

Doing coast-downs is a much better method - it gives a reasonably reliable
results for finding changes in aero drag.


--
Geoff
The Sea Hawk at Wow Way d0t Com
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