In June 2012, the U.S. Environmental Protection Agency (EPA) approved the sale of E15 gasoline, a mixture of 15 percent ethanol and 85 percent gas. (A lower ethanol mixture containing 10 percent ethanol, E10, was already widely being sold in the U.S.)
It’s not your father’s idiot light. How much do you know about your “Check Engine” light? If you’re like most people, not much. Most owners only know that they don’t really want to see it come on while the engine is running.
Don’t try to get away with using cheap antifreeze in your 300ZX. It has usually been watered down. However, if you feel you simply must use it, DO NOT DILUTE it; run it straight. Better quality antifreezes (such as Prestone) should be diluted, however.