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Aero-mods are good, but, slowing down is better.
The P.O. has a fleet that is fairly new. Our (here in Norf.) fleet is only 2 years old. The new trucks are better with mpg than the old ones were. Yes the new ones are slightly more aero. But the main difference is the new trucks are regulated to 60 mph. The old trucks average was 9 mgp. Unregulated, go as fast as you can. The new trucks average 12 mpg. Regulated @ 60.
We have 2 of the old style here for spares, when compared side by side there is not much difference in the shapes.
That's my $.02 .S.
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When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That's relativity.
Albert Einstein
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