J Brockley wrote:
> "socamb" <socamb@[EMAIL PROTECTED]
> wrote in message
>
news:b78432bf-f681-4707-8e87-ab5e2552a0c6@[EMAIL PROTECTED]
>> I am considering purchasing a 2008 miata. O have a 1997 and love it. I
>> noticed the 2008 miata required premium gas. Is this true. The dealer
>> said it does not really require it.
>>
>> I will have a hard time purchasing a car that required premium gas
>> these days.
>>
>> any thoughts the group has would be appreciated.
> The best way would be to try it as the ECU would compensate.
> In my case in a 2000 with 1600 engine my distance per tank is fairly
> consistant on a trip and seems to move down from 525k (328 miles) to
under
> 500k (312 miles) with lower octane fuel.
> Of course this may have changed with the current model and my tests of
low
> octane where on a lot smaller sample.
>
>
>
Well, driving down the interstate at 75 with cruise control on I can
detect no difference in mileage which correlates with fuel octane. The
outside air temperature, wind conditions, and minor fluctuations in tire
pressure seem to have a stronger effect on overall mileage. I routinely
record (and I keep meticulous records to satisfy my own curiosity)
mileage in the 32-34mpg range under the given conditions and have seen
verifiable numbers at and above 36. This is, of course, a limited data
set (just under 100 samples) I'm working with and my mean mileage has
settled down to 26.8 with a low just above 20. Most of the time I drive
around town with plus grade fuel unless I am absolutely sure that I'm
going to be on a purely "fun" drive when I'll put in premium or that I'm
going to be slogging down the interstate when I'll put regular if I'm
thinking that far ahead. Overall I'd say that I am definitely not a
gentle driver and am not prone to *****foot anywhere -- the number of
sets of tires I've gone through in my two Miatas would tend to back up
that assertion.
--
John McGaw
[Knoxville, TN, USA]
http://johnmcgaw.com
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