Yeah we have done this at 65 mph a lot actually for long trips. Find a 65mph calm truck or semi, follow with ACC set at the furthest distance (so not helping with wind resistance but thats okay). Faster cars / trucks stay on the left lane. Then my mind can wander, have deep conversations with passengers or even karaoke So far so good no cracked windshield (YET! 🤞)
Yup. People have this idea that you have to really closely tailgate the truck to get drag reduction. It's actually still 11% at 100ft and about 5% at 200 Ft.Speaking as a former truck driver, we don't mind four-wheelers following as long as they don't hang off our trailer tandems. If you can't see the driver's face in his mirrors, he can't see you. And that makes him nervous. And maybe he'll light up his brakes with a wee tap on the trailer brakes, just to back you off.
The trick here is to draft a union driver. They get paid by the hour, and are usually speed-monitored by computer: Schneider. Roadway. Wal-Mart. It's the owner-operators and small independents--flashy Kenworths, Western Stars, and Peterbilts with beetle-brow chrome sunshades--that you want to avoid. Those guys get paid by the mile, and the more they can roll up without running afoul the logbooks the more money they make.
(Blue as measured by mythbusters, dotted, using a logarithmic model).
Dropping speed from 75 to 65 MPH reduces drag by 30%. You add another 5% on top of that safely behind a truck at a distance that you see the driver in their mirror. That's an easy boost from 2.7mi/KWh to 3.6mi/KWh or a range boost from 190 to 250 mi from 100% to 10% charge. People will also be much less inclined to push you off the road if they see a truck in front of you.
Sarcastic you may be, most people aren't roadtripping in their EVs so there's plenty of trucks in the sea and spending more money (and carbon) just to release more carbon is a strategy that got us where we are headed right now. (Not that hypermiling is comparable to the scale of other emissions sources).We need to make sure there is a semi for each EV traveling on the highways so that EVs can be used for road trips. I’m thinking about making an app for EV drivers to find a truck to follow.
Or, we can start bying EVs with decent range.