Gas mileage varies with brand of gas?

jim beam wrote:

> pj wrote:
>
>> "SMS" > wrote in message
>> ...
>>
>>> slim wrote:
>>>
>>>> Am I crazy or does the brand of gas really make a difference in MPG?
>>>>
>>>> Over the last year, I kept track of my mileage according to brand of
>>>> gas used. Always regular.
>>>>
>>>> I would fill up a near-empty tank with a brand ,run untill almost
>>>> empty, note mileage and fill with a different brand. Some of my
>>>> friends say "gas is gas" but I have to say that Gulf gets me the
>>>> best mileage.
>>>>
>>>> My 96 Honda DX coupe gets 22-23 overall (mostly city) with Gulf,
>>>> 20-22 with Mobil and 19-21 with Hess
>>>
>>> That's way too close to draw any conclusions from. The pump at one
>>> station may be cutting off 1/4-1/3 gallon different than at another
>>> station.
>>>
>>> It is true that the more ethanol in the gasoline, the poorer the
>>> mileage, and some of the lower end gasolines end up with more ethanol
>>> mixed in, even though it's still less than the legal limit.
>>
>>
>> SMS is correct, ethanol contains less energy than gasoline so if you
>> are using gasahol, you have to expect somewhat lower mileage. The
>> Mobile station near me is selling gasohol with 10% ethanol and I have
>> seen a noticable decline in how far I can go on a tank of gas when I
>> fill up there. Fortunately, that station is usually as cheap as
>> Walmart or anyone else in the area. On the plus side, each gallon of
>> ethanol in the gasoline is about 0.9 gallons of gasoline we don't have
>> to buy from the Mid East.
>
> yeah, but it takes more fuel to make the ethanol than it yields, once
> you take the agricultural side of the equation into account. unfortunate
> though it may be, buying gas from rag heads is a good thing. we simply
> need to buy less of it, not put lipstick on the backdoor farming subsidy
> pig and call it "domestic energy". and if we were really serious about
> foreign oil, we'd tax suv's to blazes and stop using "crash testing" as
> the excuse to make cars 50% heavier than they need to be, thereby
> ruining their gas efficiency. ban "oxygenated" fuels and encourage more
> diesels too.


Amen to that... And consider that the bulk of our petroleum imports is
from our "pal" in Venezuela..

JT

Ethanol is a poor substitute to MTBE.. Unless there's another additive
they use I think most use Ethanol to replace MTBE..


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Grumpy AuContraire wrote:
>
> Amen to that... And consider that the bulk of our petroleum imports is
> from our "pal" in Venezuela..

Actually, the top two sources of oil imported to the US are Canada and
Mexico, respectively. Venezuela is #4, behind Saudi Arabia.

http://snipurl.com/7c1e

--
Mike Smith

Two possible answers; ethanol may give you worse mpg than straight
gasoline. This isn't true for all cars & driving conditions. Some
fuel pumps give you more than 1 gallon for every gallon of fuel you
pay for. Best I've seen is +6 tablespoons (about 2 ounces) based on
the state's measure of proper fuel delivery. Of course, some fuel
pumps don't give you the amount of gas you paid for- worst I've seen
is -2 tablespoons. If your state requires this rating, you might
experiment and keep track of mpg based on the rating.

On Jan 31, 1:58 pm, slim > wrote:
> Am I crazy or does the brand of gas really make a difference in MPG?
>
> Over the last year, I kept track of my mileage according to brand of
> gas used. Always regular.
>
> I would fill up a near-empty tank with a brand ,run untill almost
> empty, note mileage and fill with a different brand. Some of my friends
> say "gas is gas" but I have to say that Gulf gets me the best mileage.
>
> My 96 Honda DX coupe gets 22-23 overall (mostly city) with Gulf, 20-22
> with Mobil and 19-21 with Hess
>
> Is there a reason for that? Does gas vary that much from brand to brand?
>
> I am not trolling or looking to start a war.
>
> Thanks in advance.
>
> --
> - Slim