If you have a diesel-powered vehicle that's been sitting unused for more than a few months, you might be wondering if its fuel has ended up going bad.

According to Green Car Congress, more than 3/4 of the over 15 million commercial trucks on the road today in the United States use diesel fuel. Diesel fuel differs from gasoline in that it packs more ...

Add Yahoo as a preferred source to see more of our stories on Google. Yes, diesel can go bad over time, just like gasoline when it sits for too long inside your car. Typically, its shelf life is ...