Motor Knocking
i have never heard one like this. it was running real good though. so i drove it home but i got gas first and put 92 octane in it with a little splash of diesel for better cylinder lubrication.so i pull up into the driveway and i still hear the noise. what do you guys think it is. i think it might be a god damn broken crankshaft.cause this noise is bad. my fuel mileage dropped about 2 mpg less than usuall.so idk.can you guy tell me what a broken crankshaft sounds like. any help would be great cause i am a dumb *** to this stuff because i try to act like i know alot but i really dont. i am also a EX-AUTOZONER so i kinda some. thanks alot!!!

