Ford Repair Questions? Ask a Mechanic for Answers ASAP
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You can run cheaper fuel but it will make the engine not perform to its best performance level. It will make the motor spark knock sometimes. This is when the motor is running cheaper fuel. I know premium is expensive but if you want the motor to run right stick with it. You can run cheaper fuel and you can also mix it up like every other fillup. But dont run 87 all the time.