Can I use DCA2 coolant additive?
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Mountain Pass
Joined: May 2017
Posts: 138
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Can I use DCA2 coolant additive?
Hi Folks,
I have a 1994 7.3 idi and was wondering if I can use Fleetwood DCA2 coolant additive?
I just checked the coolant with a test strip and for now it seems to been in good shape and was wondering if DCA2 is ok to use instead of DCA4?
( If everyone swears by Motorcraft additive at NAPA, i can go that route too)
I have a 1994 7.3 idi and was wondering if I can use Fleetwood DCA2 coolant additive?
I just checked the coolant with a test strip and for now it seems to been in good shape and was wondering if DCA2 is ok to use instead of DCA4?
( If everyone swears by Motorcraft additive at NAPA, i can go that route too)
Lead Driver
Joined: Apr 2008
Posts: 6,943
Likes: 13
Yes, you can, some will say only use DCA2. Im running DCA4 in my new engine, the general agreement is not to mix the two. As i understand it, DCA2 has to be measured and replenished, whereas DCA4 does not, during the life of the coolant.
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