Deflector

laknox wrote:

egshswinger wrote:
I have seen attached to the top of TV a deflector and was wondering if it is really necessary.

Biggest issue is the distance between the deflector and the front of the FW; allows air back down into the gap. Yes, it saves...some...but so small that you've got to drive literally hundreds of thousands of miles to pay for it. Newer rigs are much more aero-efficient these days, so I think they're money wasted. Having a rounded =rear= cap on your FW will give you much more mileage boost because it's that turbulence on the back that hurts.

Lyle

X2

There's a reason the ones on semi tractor/trailers are very close to front of trailer and same height as trailer