On Sat, 10 May 2008 14:58:03 +0000, Jeff wrote:

>> You will hit speeds and conditions on any car, no matter how it was
>> broken in due to engine and mechanical efficiencies. On most 4 cylinder
>> Toyotas I have owned, they seem to hit their stride 70~75 MPH, since I
>> assume this is the engine's most efficient mode. I have noticed this on
>> 4 or 5 Toyotas I have owned. Always got the best economy at about 72 MPH
>> in 5th gear.
>
> How do you know that the speeds that the cars were driven at had anything
> to do with these "strides"? And why would driving a car a particular speed
> cause this?
>
> I think you don't know what you're talking about.


The cars I have had new and have broken in myself have not had this
problem. The couple of cars I bought used that do this have a tendancy to
'settle' around 45 and 65 or so. The 7 new cars I broke in didn't do this.
And two of them were identical models.

And my Supra seems to settle around 60. It's a Canadian car, and whne I
say 60 I mean 60 KmH.

But, you never think I know what I'm talking about anyway, so I just
consider the source.