Rachel wants to know how much it costs per mile to run a car. Her friends calculate the cost of by the cost of the gas used, but Rachel thinks they should also factor in wear and tear on the engine, maintenance, etc. Luckily, the IRS calculates this number every year. The answer, plus Tom and Ray's advice on whether Rachel should start billing her friends at the IRS rate for rides around town, right here.
Heat from the engine compartment in Daniel's 1979 Fiat Spider is giving him hot foot. On this car, there are so many possible culprits Tom and Ray don't know where to start. The catalytic converter could be running hot or it could be a bad fuel injector or a missing heat shield. Find out what Tom and Ray advise, right here.