Average class 8 truck (>33,000lbs) burns under 11,000GGEa year, ratio is 1GGE=1.13gal of diesel. So somewhere under 12,500gal of diesel on average, but we'll use that to lean even more in the truck's favor.

https://afdc.energy.gov/data/10308

Are you suggesting the average car burns less than 1 gallon of gas a year?

A 20mpg car driving 12,500mi (the average ICE in the US) would use 625gal of gas. So more like 20x, maybe 40x if the per gallon tax of diesel is double. Pretty dang far off from 20,000x.

And they're doing way more miles while being massively heavier, meaning incredibly more harm on the road than whatever EV you're thinking.