Re: Best MPG : 5-speed vs. auto?

"Steve B." wrote:

On Tue, 11 Apr 2006 17:13:35 -0400, Mike Romain <romainm@xxxxxxxxxxxx>
wrote:

Floating along in neutral is just plain dangerous and you are fooling
yourself for savings.

Serious question. How is it dangerous?

Steve B.

When you are in gear 'coasting along' or decelerating the suspension is
under a torque load and most things like springs, ball joints, u-joints,
etc. have a load bias to one side of the mating surfaces. This makes
for a basically stable track.

When you are floating in neutral, the joints are bouncing 'up and down'
or side to side in the middle of the joint's mating surfaces hitting one
side or the other as the vehicle hits bumps in the road.

Think u-joint. A bad u-joint starts vibrating when you are between
accelerating and decelerating, it doesn't bitch when it is pinned to one
side during acceleration or deceleration.

If you have marginal parts in there for wear, this can be a sloppy mess
that can end up with wheels vibrating side to side or parts just plain
breaking because they had that 'up and down' impact happening all the
time.

When you hit the brakes in neutral, the vehicle also handles way
differently, (it nose dives usually) than if it is in gear under torque
load and if it has sloppy joints like mentioned, can lead to loss of
control really fast.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pictures.html?id=2115147590
(More Off Road album links at bottom of the view page)
.

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