I just watched the video. You can't know what the writer was thinking. The song comes out and say brother, and the picture of the two together are similar in age. So no matter the intensions it's about a guy who misses his brother who died while in the Army, and his mother ask if he visited the gave, and he say his way to remember is to drive his truck that uses a lot of gas. I would have liked it more if it was about his fathers truck, because my Dad recently gave me his old tuck because he can't drive anymore. So no matter what it was once based on, it has been altered to being brother.