Hybrid Car – More Fun with Less Gas

Low rolling resitance tires - how long will they last? - Page 2

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Posted by Marc Gerges on January 25, 2008, 2:36 am

I'm not quite convinced B saves much of anything vs soft braking (which
the Prius does electrically anyway) - but then you've obviously done
nothing wrong, considering your mileage.

Tires are one big compromise, between wear, roadholding, noise, wet
performance, comfort, price, temperature range and other factors. If
you're happy with what you've got, you know what to buy in a year or so,
right? :-)


Posted by Elmo P. Shagnasty on January 25, 2008, 11:53 am
 marc.gerges@gmail.com (Marc Gerges) wrote:

How does he know, if he's always used B?

B keeps the engine in the loop as an air pump.  Shouldn't be running
spark and fuel, though, but still--using it as an air pump like that to
slow down is causing wear that it isn't designed to get on an ongoing

The brake pedal engages the generators to slow the car down, which is
what it's designed to do.

fuelzilla there is the perfect example of "that's how my daddy taught me
to do it" and how things pass from generation to generation.  He's doing
something not out of reading and proper training, but out of "it just
seems like it should be the thing to do"--and apparently he's convinced
now it's the PROPER thing to do, despite the facts.

Posted by Marc Gerges on January 26, 2008, 1:23 pm
I was only looking at tire wear as claimed by him, and found it to be
remarkably low - so he hasn't done anything wrong that would eat his
tires. And I can't see that B would put more load on the tires than soft
electric only braking.

It'll probably spark, to make absolutely sure no unburnt fuel goes to
the cat; even in case there were a dripping injector or something. But
then, having the engine pump air is not going to wear it any more than
if it were to do so in a conventional car.

Prius got out of the realm of the geeks. Normal people drive them now,
as well :)


Posted by Elmo P. Shagnasty on January 26, 2008, 3:34 pm
  marc.gerges@gmail.com (Marc Gerges) wrote:

Ah, but the Prius isn't a conventional car, and wasn't designed to
operate like a conventional car.

It wasn't designed to live in B.  I'm sure Toyota's engineers would have
something to say about that.

Posted by Tomes on January 26, 2008, 4:29 pm
 "Marc Gerges" ...

It does not spark, it just spins.  Here is a pretty good explanation of B
(back from the Usenet dead....)

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