Mobile 1 synthetic

#21

zxcvbob wrote:

Quote:

Steve Barker wrote:
zxcvbob wrote:
The next thing I'm
gonna try is adding a half-tonneau cover (back half) to reduce wind
resistance. http://www.freepatentsonline.com/4573730.html

Bob

it's already been proven that the wind resistance in the bed is of no
consequence. Running with the tailgate down only destroys the back of
the bed. The covers are functional only for security or cosmetics. Not
for mpg increase.

s

Did you look at the link I posted? (I know tailgate-down doesn't
help, even though you'd expect it to)

Bob

If you want improved mileage, draft behind a semi. My new F350 has the
aerodynamics of a brick, I get a full 30% increase in MPG drafting
behind a semi vs. the exact same road and speed with no vehicle in front
of me.

#22

Stormin Mormon wrote:

Quote:

How far back does the air cushion go? I found out a while
back that if you tailgate a semi about two feet away, there
is a vacuum effect. And the semi driver doesn't much like
you after that. I never did that one again.

the trick to doing that is to get on the cb and get permission. I used

to do it all the time with permission. You do have to be very very
close to get the benefit. And watch the water temp. you won't be
getting proper airflow through the radiator.

s

#23

Stormin Mormon wrote:

Quote:

How far back does the air cushion go? I found out a while
back that if you tailgate a semi about two feet away, there
is a vacuum effect. And the semi driver doesn't much like
you after that. I never did that one again.

50' is sufficient and safe.

#24

Steve Barker wrote:

Quote:

Stormin Mormon wrote:
How far back does the air cushion go? I found out a while
back that if you tailgate a semi about two feet away, there
is a vacuum effect. And the semi driver doesn't much like
you after that. I never did that one again.

the trick to doing that is to get on the cb and get permission. I used
to do it all the time with permission. You do have to be very very
close to get the benefit. And watch the water temp. you won't be
getting proper airflow through the radiator.

s

Not at all, there is very substantial benefit at a very safe 50'
following distance. Exactly how much of course varies with the
aerodynamics of your vehicle.

#25

Pete C. wrote:

Quote:

Stormin Mormon wrote:
How far back does the air cushion go? I found out a while
back that if you tailgate a semi about two feet away, there
is a vacuum effect. And the semi driver doesn't much like
you after that. I never did that one again.

50' is sufficient and safe.

50' is not drafting and is of NO benefit. That's normal following distance.

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Mobile 1 synthetic

Chevy/GMC trucks Chevy/GMC trucks (alt.trucks.chevy)

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