Premium gas sales tank as fuel prices rise

phantom power

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Thu Jun-19-08 01:01 PM
Original message

Premium gas sales tank as fuel prices rise

This strikes me as a bit funny, since the extra cost is marginal. An extra $3 for 20 gallons. About $83 instead of $80.

MIAMI BEACH, Fla. - Ernesto Evangelista prefers to pump premium gas into his seven-month-old Nissan Titan, thinking it makes the truck run better. But at a BP station just a few blocks from the sand of Miami Beach, the 33-year-old painter grabbed the handle for the regular, 87-octane gas to fill his tank on a recent Friday.

"Premium is just too expensive," he said. "Nobody can afford to fill up with premium anymore."

http://news.yahoo.com/s/ap/20080619/ap_on_bi_ge/premium_gas_5;_ylt=AupHHPmEHRTdV2LLv.qz7EeAsnsA

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groovedaddy

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Thu Jun-19-08 01:05 PM
Response to Original message

1. When I filled up last week Premium was only .08 more than regular

so I used premium.

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flvegan

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Thu Jun-19-08 01:07 PM
Response to Original message

2. More for me!

My car (and warranty) require it.

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AndyTiedye

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Thu Jun-19-08 01:26 PM
Response to Original message

3. If it Runs Better on Premium, Check Your Gas Mileage

You may get enough of a mileage improvement with premium to pay for the difference.

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MercutioATC

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Thu Jun-19-08 02:28 PM
Response to Reply #3

4. Premium does NOT give you better mileage.

There's no more stored energy in premium than regular...the octane rating is just a measure of detonation temperature. Higher octane gas detonates at a higher temperature.

Only high-compression engines need premium gasoline. If they get regular grade gas, they're prone to predetonation. A regular engine gets absolutely NO benefit from a higher-octane fuel than required.

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AndyTiedye

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Thu Jun-19-08 02:47 PM
Response to Reply #4

5. It Depends on the Car

High-compression engines need it, as you point out.

Older cars are widely reported to suffer from "octane creep", where
they need higher-octane gas than they did when they were new.

I used to own a car that got better mileage on high-test (I kept track),
though it did not ping on regular as far as I could tell. I don't think it
had a particularly high-compression engine.

If the car runs noticeably better on high-test, it is likely to be running more efficiently as well.

It depends on the car. That's why I suggest that people check for themselves.

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ElectricGrid

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Thu Jun-19-08 02:48 PM
Response to Reply #4

6. wrong....

there are some engines that run higher milage on premium. The proof is out there.

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