How to determine your true truck cost.
What you pay for your truck MINUS what you eventually sell it for, MINUS what the money would have earned if you put it in a safe investment.
Let's assume you pay $50,000 cash for a 2004 Pete, and have decided to sell it in five years no matter what, and get out of the trucking business.
2012 comes along, the wholesale value of your truck is $25,000. Your actual truck cost was $25,000 for five years. If you drove 500,000 miles during that time, than that would be .05/mile.
But wait - If you had put the $50,000 in a money market account at 5% you would still have the whole $50K plus about $14,000 in interest for a total of $64,000.
So your truck cost was 25,000 plus 14,000 for $39,000, or .078/mile.