Me venting....

So I gotta vent about something and you can tell me if I am wrong to feel this way or you can agree with me and give us advice on how to resolve it.
Carpooling!
So do I have the definition wrong. Carpooling....riding to work or other places together with other people and sharing the cost of gas. This is my assumption. Here is the dictionary's definition.....an arrangement among a group of automobile owners by which each owner in turn drives the others or their children to and from a designated place. So pretty much the same.
So about 2 months ago a guy from Erik's work started asking him for a ride to work. He lives up in Syracuse so it would work out great to carpool. Erik gave him 10+ rides to work, even when Erik wrecked his car and had a rental car he still gave him a ride to work, and in return the guy paid him $6.
That doesn't even cover the cost of one way down to Salt Lake.
Erik has been working a lot of graveyards the last month because they have been short staffed and training new people. This is the first week that Erik is back to all days at the Red Lion, minus yesterday that he had off, but he works evenings on Monday. So yesterday the guy asked for a ride to work today. Erik and I talked about it yesterday and he either needs to pay Erik more or take his turn doing the driving. We are not going to pay for him to go to work.
He told Erik a few months ago that they are in debt because of some mold removal that they had to have at their house. So since he is in debt we have to take him to work, because he can't afford it. The part that makes me pissed is that one day he forgot his work key in Erik's car and he needed it for work the next day, so he had to come by the house to get it. Guess what, he owns a car that gets better gas mileage than Erik's. Ugghhh! Are you serious dude! I have met him, he is a really nice guy, but we can't afford the gas to get to work, just as much as he says he can't afford it.
I talked to Erik this morning to see if he said anything to him on the way down today. They talked about how expensive the gas is getting. So on the way home Erik is suppose to ask him to take a turn driving a couple days a week. If it was a one time thing, that's totally different, but to keep asking for a ride and not help with gas is rude!