I have a friend who has a 3 year-old pickup in storage that has about 1,000 miles on it. He’s covered until they outlaw diesel. I’ve done similar. I have an extra gasoline truck that gets a couple of thousand miles a year put on it, plus an older pickup for daily use. They’ll have to take them away.
Modern diesels can be permanently disabled by simply stopping the sale of DEF. Unless you stockpile that as well...