What type of antifreeze do you put in your 2000 F150 with the 4.2L V6 engine?

You put in what the owner's manual recommends. Contrary to what aftermarket coolant manufacturers say, there is no such thing as a universal coolant. Put in the wrong stuff and you can damage water pump seals and create enough electrolysis to eat up your heater core. It's much cheaper to buy the right coolant the first time around.

Rick

I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.com