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Most states do not mandate certain standard gasoline grade octane ratings.In the United States and Canada, octane ratings are in AKI, commonly shown as "(R+M)/2".All states require gas pumps to be labeled with the correct octane level and nearly all states do regular testing to make sure gas stations are in compliance.
In the United States, the emission standards for non-road diesel engines are published in the US Code of Federal Regulations, Title 40, Part 89 (40 CFR Part 89). Tier 1–3 Standards were adopted in 1994 and was phased in between 1996 and 2000 for engines over 37 kW (50 hp). In 1998 the regulation included engines under 37 kW and introduced ...
This type of gasoline is known in Portuguese as Gasolina Aditivada (English: "Additived Gasoline") – Petrobras stations brand it as "Petrobras Grid"; [30] nevertheless, the octane rating is also 93 RON (these additives are used to improve the performance and efficiency of the engine, but they are not indicative of a higher octane rating).
The amount of ethanol used in the United States is also limited by the number of Flex Fuel vehicles available which are capable of operating on ethanol blends as high as 85% (E85) and the relative pricing of E85 as compared to regular gasoline (E10). Other alternative fuels may have higher functional "blend walls".
API number, a unique identifier applied to each petroleum exploration or production well drilled in the United States. API unit, a standard measure of natural gamma radiation measured in a borehole. [16] "Non-API", an item (e.g., tubular connector) not conforming to API standards "Non-API", (informal) slang term for anything out of the norm.
The current decline is notable given prices at the pump are about $0.30 lower than a year ago, when oil was hovering around the same levels as today.
U.S. gasoline prices rose earlier this month but are falling again after West Coast refinery outages subsided and seasonal demand fell. President Joe Biden plans to sell the last portion of a ...
Fuel additives in the United States are regulated under section 211 of the Clean Air Act (as amended in January 1995). The Environmental Protection Agency (EPA) requires the registration of all fuel additives which are commercially distributed for use in highway motor vehicles in the United States, [8] and may require testing and ban harmful additives.