99 Sport, 4.0 SOHC, 4WD, 89000miles. Anyone know if there is a coolant drain plug on the block somwhere. Im going to flush the coolant tomorrow. If just draining the radiator is sufficient (i am going to use a bottle of prestone flush also) then thats all I need to know. Also they told me the capacity at a 50/50 mix was 1 3/4 gallons, does that sound right? I bought one gallon of prestone and I will use 3/4 gallons of water for a rough 60/40 coolant/water mix. Does this sound right? I am also going to change the fuel filter (for the first time). In my Hanes it shows two different types of systems, one pressurized where you need to unplug the inertia switch under the glove box first, and one that isnt. It does not say which kind mine is and I am a little confused. Is it as simple as taking off the old filter and installing the new one, anything extra I need to know? Thanks all.