Ford recommends a coolant change at 6 years,my 2011 will be 6 years old this May,I am going to take my Mustang into Ford,they have a machine they hook the car up to to flush and refill the system without removing the lower hose and making a mess,cost is $150.00,it is worth it to me,NO mess and complete new coolant.
They want $200 around here, and that's just too much money. I figure getting 80% of the coolant out is fine. I'm just not spending that much money.
2012 GT Premium, Brembo PP, MT82, 3.73s, Blk/Blk. Bama 93R, Koni Yellow Rear Shocks, Hawk Ceramic pads, Luxurious & Plush Floor Mats