'You sure that isnt the name of the bus??!!
"John Keeney" wrote in message
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"Peter Stickney" wrote in message
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In article ,
Mike Marron writes:
(Peter Stickney) wrote:

Allison also Diesel engines for use in tractor-trailers & other such
applications. You can easily pick 'em out by ear, they've got a
distinctive high-frequency scream in their engine note.

I'm not aware of any Allison diesel engines used in semis. The Big
Three truck engine manufacturers are Caterpillar, Cummins and Detroit
Diesel. Going down the road, you can't differentiate between the three
by the sound alone and I suspect the high-freqency scream you're
referring to is simply the turbo.

Argh! Ya got me, Mike!
Yeah, the Diesels are Detroits. Of course,, you _could_ ig you were
willing to split hairs about it, call 'em Allisons after GM Merged
Detroit Diesel and Allison.
But that would be wussing out.

OK, I was having regrets having posted they were out there, I was
beginning
to wonder if I was thinking of Detroits.
But the neighbors' kid's hippie school bus has "Allison" written on it.
I didn't realize that GM had merged Detroit Diesel and Allison.