[rattlsnak]

He could be totally oblivious to this... Would I expect him to pay ALL the gas, absolutely not. As was mentioned, he is your guest. You're going out anyway.. Should he chip in? Absolutely.. These hobbies cost money.. If he offers and you turn him down, well thats another story.. The idea of mentioning it upfront should work. He'll either say yes or no based on if he wants to pay or not..