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Story summary
- Sean Howarth, an independent truck driver, is driving full-time to afford soaring diesel costs.
- Diesel averages $6.39 per gallon nationally, up from $3.71 a year ago, per AAA.
- The war in Iran caused fill-ups to cost about $1,000 per tank.
- Howarth has been away from home since mid-August, sleeping in his truck.
- He will return home for holidays only if diesel prices drop sharply.
