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speaking as an automotive mechanic by trade, other HN posters are right to point out this is largely due to advances in fuel economy. Id argue it wasnt hard fo

speaking as an automotive mechanic by trade, other HN posters are right to point out this is largely due to advances in fuel economy. Id argue it wasnt hard for this reduction to occur, as the super-large SUV fetish from the 90s has long died out. most of the new rolling stock of large vehicles are crossovers, or hybrid. another key point is oil recycling. most of the new oil put into engines is recycled with 15-20% new stock at best. the really old stuff that can no longer be refined after use is either blended for use in asphalt or recycled plastics.

CydeWeys 8y ago
> the super-large SUV fetish from the 90s has long died out. Are you sure this is true? I believe the size of the average American new car is the largest it's ever been. Sedans and station wagons have been replaced with SUVs and trucks. Hell, Ford's barely even making cars anymore, just SUVs and trucks. More info here: https://www.cnbc.com/2018/04/06/the-steadily-disappearing-american-car.html https://www.cnbc.com/2018/04/06/the-steadily-disappearing-am... I suppose that you were referring to Hummers, but they were only ever a tiny portion of the market. The rest of the market, however, has been steadily transitioning to larger vehicles ever since.