Car manufacturers are not listening to the tire
makers.
Case in point was the Firestone/Ford debate a few
years ago. Firestone has maintained it's position that
a radial tire inflated to 26 PSI on a Ford Explorer is
too low. Who is Ford to specify a lower tire pressure
just to get the damn thing to ride like a Caddy and
throw safety out the window?!
As for diectional tires...the body of the tires are
made the same as bi-directional(?) tires. The
aggresive tread design is made to evacuate water to
the rear and sides as the tire moves over the wet
surface. It will not hurt a directional tire to run it
in reverse rotation, but on a wet road, it would be
horrible since the water would actually be gathered by
the tread and pulled to the center of the tire's
contact patch creating a severe hydroplaning
situation!
Proper roation on all later model vehicles with newer
radisl tires (with the exclusion of vehicles with
different sizes front and rear, and directional tires)
is as follows:
Front wheel drive: front tires straight back, cross
rear tires when moved to front
Rear and 4 wheel drive: Rear tires straight forward,
cross front tires to the rear.
Hope this helps!
Jonboy
'53 6400
'48 pro street
'93 suburban
So either radial technology that doesn't care about
direction is a
fairly recent
> development or the car manufacturers aren't
listening to the tire
manufacturers.
>
> Mark Noakes
>
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