As she noshes on almonds in her office, she compares superfoods to premium gas for a car.
Those cars for which the manufacturer has recommended premium gas, according to Edmunds, can function fine on regular.
It takes a double-size margin on premium gas, but the highest grade represents only 2% of its gasoline sales, versus 7% industrywide.
The Tamar field contained premium quality gas almost pure methane.
When the battery is depleted (or when driven at very high speeds), the premium-gas internal combustion engine powers the car, but its fuel mileage suffers from having to shove around 400lbs of batteries.
On the other hand, international markets pay a huge premium for the gas even after one factors in increased costs to account for liquefaction and transportation.
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Brazil has been forced to import more liquefied natural gas (LNG), paying a premium for the commodity, whose prices have soared in international markets.
If drivers of premium-required cars try to burn regular gas, they could damage their engine due to high exhaust-gas temperatures and knocking.
Similarly, Gas Buddy and Local Gas Prices can come in handy to help locate the cheapest gas prices in a given area for regular, midgrade, premium and diesel grades.
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The company produces premium monocrystalline sand, which is used to improve the recovery of oil and gas during hydraulic fracturing drilling.
But there are at least two major obstacles hindering wider adoption of plug-in electric vehicles: the premium that drivers will have to pay for an electric car compared with a gas-powered vehicle and the limited number of electric car charging stations nationwide.
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In the short run, that might restrict natural-gas use to vehicles such as lorries and buses, where space is at less of a premium (and which already run on a different fuel from most cars).
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