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Re: [Phys-l] Hybrid mileage

In the old days, before my time, (though a note in a moment), one had a manual choke and you would artificially give your car high revs when you first started up.

High revs (larger than (warmed-up) normal idle speed are revolutions per second.

The first car I ever owned or bought (a 1977 Honda Accord) had a manual choke. That was very unusual at the time; but it was one of many factors in my decision to purchase that car. The choke would automatically turn itself off. I don't know if really old cars (say pre-1960) if the manual chokes had to be manually turned-off?

From: [] On Behalf Of Bernard Cleyet []
Sent: Wednesday, January 06, 2010 11:23 AM
To: Forum for Physics Educators
Subject: Re: [Phys-l] Hybrid mileage

Why aren't you walking or using a bicycle?

bc, puzzled by the "high reves."; never noticed.

Yes, the first few tenths the MPG is ~ 15 -- probably as bad, relatively, with any 'bile.

On 2010, Jan 06, , at 05:13, Rauber, Joel wrote:

My prius mileage is not close to advertised and drops substantially in the winter. I think it is mostly due to what Rick mentions below. I only have less than a half mile commute to work; so a lot of my miles are never out of the initial engine warming up stages at high revs.

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