What Happens If You Put Regular Gas In A Premium Car? (And Vice Versa)

In my nearly four decades of car ownership, I have driven a staggering variety of vehicles, from vintage Jeep CJ5s and CJ7s and International Scouts to turbocharged late-model Volkswagens and BMWs. One thing all cars have in common is the constant need for refueling, and we have lots of decisions to make regarding the fuel we put in our vehicles. The point of purchase is the time to consider whether to buy a gas or diesel-powered car or truck, and

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