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Support for requiring more fuel-efficient cars and trucks; the CES items (2020 and 2022) name a specific target of raising average fuel efficiency from 40 to 54.5 miles per gallon by 2025 on a binary support/oppose scale, while the GSS items (2006 and 2010) ask generally about requiring cars that use less gasoline on a five-point scale.
AI-matched An AI model grouped these questions and mapped their answers onto shared categories, and a second AI review checked and corrected the grouping and mapping. No person has checked it: compare the question wordings and the answer mapping below before reading the lines against each other.
Latest: 67% answered “Support” in CES: Raise vehicle fuel efficiency standards, 2022.
Shares of everyone asked, including non-answers. Each point is one survey wave at the middle of its field period. Lines from different surveys are never spliced together.
| Line | Question | Match | How answers map |
|---|---|---|---|
| CES: Raise fuel efficiency standards to 54.5 miles per gallon | Raise fuel efficiency standards to 54.5 miles per gallon Do you support or oppose each of the following proposals? [Raise the average fuel efficiency for all cars and trucks in the US from 40 miles per gallon to 54.5 miles per gallon by 2025.] Caveat: Binary support/oppose; no neutral option or intensity | equivalent | Support → Support; Oppose → Oppose |
| CES: Raise vehicle fuel efficiency standards | Raise vehicle fuel efficiency standards From what you know about global climate change or global warming, which one of the following statements comes closest to your opinion? [Raise the average fuel efficiency for all cars and trucks in the US from 40 miles per gallon to 54.5 miles per gallon by 2025] Caveat: Cites a specific 54.5 mpg by 2025 target; wording preamble is about climate change; binary scale | similar | Support → Support; Oppose → Oppose |
| GSS: Require carmakers to build more fuel-efficient vehicles | Require carmakers to build more fuel-efficient vehicles How much do you favor or oppose requiring car makers to make cars and trucks that use less gasoline? Do you strongly favor, favor, neither favor nor oppose, oppose, or strongly oppose such a requirement? Caveat: Five-point scale collapsed; asks about requiring automakers to use less gasoline, not a specific mpg standard | equivalent | Strongly favor → Support; Favor → Support; Neither favor nor oppose → Neither support nor oppose; Oppose → Oppose; Strongly oppose → Oppose |
| GSS: Require carmakers to build more fuel-efficient cars | Require carmakers to build more fuel-efficient cars How much do you favor or oppose requiring car makers to make cars and trucks that use less gasoline? Do you strongly favor, favor, neither favor nor oppose, oppose, or strongly oppose such a requirement? Caveat: Five-point scale collapsed; asks about requiring automakers to use less gasoline, not a specific mpg standard |
| equivalent |
| Strongly favor → Support; Favor → Support; Neither favor nor oppose → Neither support nor oppose; Oppose → Oppose; Strongly oppose → Oppose |