Earlier quoted context omitted.
If oil companies have been campaigning specifically to deceive customers about the potential harms those customers may cause, then that should be what they are "held responsible" for. Trying to make them responsible for harms others caused using their products is rather orthogonal to that, and doesn't bolster arguments criticizing them. Tangentially, while some vehicles presumably have worse mileage than a comparably…
> Tangentially, while some vehicles presumably have worse mileage than a comparably-sized vehicle from the 1980s, There's a challenge here: people have been encouraged to buy larger vehicles. A small car will have better mileage now but the kind of vehicle the average person is commuting to work in now is much larger than it was three decades ago. I would argue that this is in part due to the successful campaign whic…
While not a perfect representation of purchases, I believe the EPA chart (Fig. ES-3) I referred to shows the average of all for-sale models for a given year, so this should capture the increasing preference for larger vehicles. Indeed, the horsepower and curb weight are shown as significant increases, even while fuel efficiency is improving (≥2005). It looks to me like the average fuel efficiency passed the 1985 peak (presumably driven by the 1970s oil crises) around 2007.
Clearly two decades of decreasing efficiency was not ideal, but I posit it may be the 1985-2005 period which you are mostly remembering. Going by the chart there was a fast shift to smaller and 'weaker' cars for highly increased efficiency 1970-1975, after which there was a slow continuous increase of power and weight - first occasioning a slow but relatively small decline in efficiency (compared to the 1970-1975 increase), but then changing to increasing efficiency as that became a more important factor for consumers.
Relatedly, while I am certainly not the target audience for the kind of advertisements that may encourage people to purchase more oil-based products, I cannot recall seeing any automotive advertising that wasn't clearly produced by a specific vehicle manufacturer. It sounds like you are suggesting 2nd and 3rd tier advertising by fuel companies for reversing the 1970-1975 reduction in consumption, but I'm not familiar with that space - I would appreciate it if you could direct me to any resources you have about that.