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REC-90 is an ethanol-free, 90 octane unleaded gasoline blend designed for use in recreational/marine engines which can be damaged by the ethanol found in other gasoline blends. It is also usable in some aviation engines [ 1 ] and automotive engines, though it has not been thoroughly tested for cars and trucks.
91 without ethanol 93 with ethanol Premium gas must be at least 93 octane if it contains 10% or more of ethanol Maryland: 87 89 93 Massachusetts: 87 89 93 Michigan: 87 89 93 85 and 86 octane may be sold if labeled as subregular [6] Minnesota: 87 89 91 110 octane fuel may be available at certain locations in southern parts of the state ...
Let's say you typically buy 10 gallons of gas per week. If Costco's gas is $0.20 cheaper per gallon than the next most affordable fuel station in your neighborhood, then you're looking at saving ...
However, journalist and automotive mechanics instructor Jim Kerr says that with some brands of gasoline, deposits can build up on intake valves in less than 10,000 kilometers (6200 miles). [7] And General Motors fuels engineer Andrew Buczynsky says the various engine-cleaning additives available at auto-parts stores should be used with caution.
Standard unleaded gas can contain up to 10% ethanol. But House Republicans didn't include it in their stripped-down proposal. Industry groups were still hoping to restore it.
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In the aftermath of Hurricane Katrina in 2005, the price of E85 rose to nearly on par with the cost of 87 octane gasoline in many states in the United States, and was for a short time the only fuel available when gasoline was sold out, but within four weeks of Katrina, the price of E85 had fallen once more to a 20% to 35% lower cost than 87 ...
Cheese whey, barley, potato waste, beverage waste, and brewery and beer waste have been used as feedstocks for ethanol fuel, but at a far smaller scale than corn and sugarcane ethanol, as plants using these feedstocks have the capacity to produce only 3 to 5 million US gallons (11 × 10 ^ 3 to 19 × 10 ^ 3 m 3) per year. [92]