FW-16 or DCA4 ?
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Joined: Feb 2003
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From: New Braunfels TX
FW-16 or DCA4 ?
I went and got a bottle (16 oz.) of Fleetgaurd DCA4 from International. He didn't know about what the FW-16 was. We just figure that is the Ford #. My ? is how much do I use in my system and how often do you add it. I have a 99 SD.
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FW-16 or DCA4 ?
You first need to check the concentration with test strips to determine the amount needed. FW-16 andd DCA-4 are the same additive in 2 different packages. 1.5-2.5 units is optimum. With a complete flush you need 4 pints. Too much additive will eat the waterpump seals.
Les
Les
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