Hello! I have a 2008 grand marquis and I planned on changing the coolant however to get the perfect ratio I was wondering when I do have the entire system filled with just water around how much does the engine block hold from a ford 4.6 SOHC and another question is I heard something about panther cars needing down the road a timing chain tensioner change as they become weak over time but I am not sure if that is true for a chain driven system. Thanks
Just buy the 50/50 pre-mix antifreeze. It should take approximately 2 gallons of pre-mix. Make sure to properly burp the air from the system. You will know when you need a new timing chain kit when you hear a rattling sound for a few seconds when the engine is started cold. You will need to replace all the components, not just the tensioner.
a few bucks
