We have to watch that we are not hoodwinked. There are actually two different cetane ratings. The CETANE INDEX is a calculated number using the gravity of the fuel and the 50% distillation point of the fuel. The CETANE NUMBER is derived from actually running the fuel through a cetane engine, like an octane number is derived by running the fuel through an octane engine. I'm with you in that the CETANE NUMBER should be posted on the pump. I have heard that some Ford diesel engines were having troubles because of a low cetane number. I have also heard that some stations are advertising some name attached to diesel to indicate that the cetane rating is higher, but how much higher. To my knowledge there are no standards. Here in Texas I have only seen just plain diesel fuel which has a minimum CETANE INDEX of 46.