Forum Discussion

hershey's avatar
hershey
Explorer
Sep 22, 2013

Fuel mileage and the huge mud flap across the back

Just thinkin'. I see a lot of conversions to the tractor trailer rigs where the distance between trailer wheels and tractor is now skirted to decrease the effect of wind drag and increase fuel mile...
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ArchHoagland's avatar
ArchHoagland
Explorer
Sep 22, 2013
Johno02 wrote:
Biggest reason for seeing the side flaps is that they are required for trucks in California. They are OK on the road except in sidewinds, where they increase the side surface, and multiplying the side wind effect. That is what our family driver says.


Required in California? Could you elaborate on that?

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