"geronimo" <Jamesw@grandecom.net> wrote in message
news:k6vlr35a0i2jcljhl49efcef0dekvdu0qn@4ax.com...
>
>
> I just bought a 04 Corolla 5-spd. The seller drove it 44 miles
> commute distance every weekday. I have only a 10 mile round trip
> distance to work, and most other trips woud be only a few
> miles...almost all short-trip city driving. He says that he was using
> "PLUS" (89 octane) rather than regular/87. He said that this not
> only gave better performance, but it also gave better gas mileage, and
> enough to offset the higher price. Was just wondering if anyone elses'
> experience with this car bears that out?

Vehicles with electronically controlled spark advance can benefit from
higher octane, but the benefit does not always outweigh the costs of the
higher octane fuel. I recommend that you try 3 or 4 tanks of premium, then
3 or 4 tanks of mid-grade, and then 3 or 4 tanks of regular. Monitor your
fuel economy and see if you can measure the difference. If you cannot tell,
then use the 87 octane.
--

Ray O
(correct punctuation to reply)

In article <k4edncGaObxFXybanZ2dnUVZ_v2pnZ2d@comcast.com>,
"Ray O" <rokigawaATtristarassociatesDOTcom> wrote:

> I recommend that you try 3 or 4 tanks of premium, then
> 3 or 4 tanks of mid-grade, and then 3 or 4 tanks of regular. Monitor your
> fuel economy and see if you can measure the difference.

Don't measure fuel economy; use a good gas, and measure your fuel cost
per mile.

If you'd like, then use grocery store gas and measure your fuel cost per
mile.

I think you'd be surprised. "Yeah, but the grocery store gas is
cheaper!"--but only the purchase price, not the per-mile price.

Elmo P. Shagnasty wrote:
> In article <k4edncGaObxFXybanZ2dnUVZ_v2pnZ2d@comcast.com>,
> "Ray O" <rokigawaATtristarassociatesDOTcom> wrote:
>
>> I recommend that you try 3 or 4 tanks of premium, then
>> 3 or 4 tanks of mid-grade, and then 3 or 4 tanks of regular. Monitor your
>> fuel economy and see if you can measure the difference.
>
> Don't measure fuel economy; use a good gas, and measure your fuel cost
> per mile.
>
> If you'd like, then use grocery store gas and measure your fuel cost per
> mile.
>
> I think you'd be surprised. "Yeah, but the grocery store gas is
> cheaper!"--but only the purchase price, not the per-mile price.

Do you have any real evidence that the name-brand gas gets better mileage?

On Wed, 20 Feb 2008 13:46:49 +0000, Jeff wrote:

> Elmo P. Shagnasty wrote:
>> In article <k4edncGaObxFXybanZ2dnUVZ_v2pnZ2d@comcast.com>,
>> "Ray O" <rokigawaATtristarassociatesDOTcom> wrote:
>>
>>> I recommend that you try 3 or 4 tanks of premium, then 3 or 4 tanks of
>>> mid-grade, and then 3 or 4 tanks of regular. Monitor your fuel economy
>>> and see if you can measure the difference.
>>
>> Don't measure fuel economy; use a good gas, and measure your fuel cost
>> per mile.
>>
>> If you'd like, then use grocery store gas and measure your fuel cost per
>> mile.
>>
>> I think you'd be surprised. "Yeah, but the grocery store gas is
>> cheaper!"--but only the purchase price, not the per-mile price.
>
> Do you have any real evidence that the name-brand gas gets better mileage?


Yeah...

"Elmo P. Shagnasty" <elmop@nastydesigns.com> wrote in message
news:elmop-ED932D.07325120022008@nntp4.usenetserver.com...
> In article <k4edncGaObxFXybanZ2dnUVZ_v2pnZ2d@comcast.com>,
> "Ray O" <rokigawaATtristarassociatesDOTcom> wrote:
>
>> I recommend that you try 3 or 4 tanks of premium, then
>> 3 or 4 tanks of mid-grade, and then 3 or 4 tanks of regular. Monitor
>> your
>> fuel economy and see if you can measure the difference.
>
> Don't measure fuel economy; use a good gas, and measure your fuel cost
> per mile.
>
> If you'd like, then use grocery store gas and measure your fuel cost per
> mile.
>
> I think you'd be surprised. "Yeah, but the grocery store gas is
> cheaper!"--but only the purchase price, not the per-mile price.
>

Good point, it's fuel cost per mile that is relevant.
--

Ray O
(correct punctuation to reply)