haha do mean to be a dick about it but have you ever read the side of wd can? IMO its the bast thing to spray on the motor.
THE FIVE BASIC FUNCTIONS:
LUBRICATES: WD-40's lubricating ingredients are widely dispersed and hold firmly to all moving parts.
CLEANS: WD-40 gets under dirt, grime and grease to clean. It also dissolves adhesives, allowing easy removal of labels, tape, stickers, and excess bonding material.
PROTECTS: WD-40 protects metal surfaces with corrosion-resistant ingredients to shield against moisture and other corrosive elements.
PENETRATES: WD-40 loosens rust-to-metal bonds and frees stuck, frozen or rusted metal parts.
DISPLACES MOISTURE: Because WD-40 displaces moisture, it quickly dries out electrical systems to eliminate moisture-induced short circuits.
(From their site-
http://www.wd40.com/products/ )
like i said spray heavily Everywhere anywhere and DONT wipe off. Dont. drive around the block with that heavy foot of yers and make the motor hot. when you stop DO NOT freak out about smoke You may have gotten some on headers or what ever it happens i do it alot. It will not catch fire if it does soemthing is wrong with yer stang. mine is 40 years old with the origonal motor i doubt it will if i cn spray it on that car. if you really ant to you can even take a rubber glove and spread it with hands on small stuff. you will smell it while driving but after about 5 miles or so it fades and your car is CLEAN and running healthier than before. Hope this helps