Supplemental Coolant Additive?
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From: Salem, Oregon
Supplemental Coolant Additive?
Ford specifies a SCA part # FW16. Anyone know if this is the same as Fleetguard DCA4? I buy the DCA4 by the gallon for my big trucks but I'm not sure if it is right for my 7.3?
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Joined: May 2004
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From: Central Coast of CA
There are two types of SCA. DCA-2 and DCA-4.
NapaKool is a DCA-2 SCA.
DCA-2 is a Nitrite-only based SCA. Nitrite is the primary and most effective cavitation inhibitor in any SCA. DCA-2 usually contains potassium buffers, free of phosphate.
DCA-2 was the first SCA, and it remains the most popular. It can be tested with any test strip that shows Nitrite levels, either a 2-way or 3-way strip.
DCA-4 is a Molybdate/Nitrite based SCA. It uses both Molybdate and Nitrite "synergy" as a cavitation inhibitor. DCA-4 usually has sodium buffers and phosphates.
DCA-4 is somewhat harder to find, maintain, and optimize. It can be tested with a 3-way test strip, although conversions are available for using 2-way strips.
Stewart
NapaKool is a DCA-2 SCA.
DCA-2 is a Nitrite-only based SCA. Nitrite is the primary and most effective cavitation inhibitor in any SCA. DCA-2 usually contains potassium buffers, free of phosphate.
DCA-2 was the first SCA, and it remains the most popular. It can be tested with any test strip that shows Nitrite levels, either a 2-way or 3-way strip.
DCA-4 is a Molybdate/Nitrite based SCA. It uses both Molybdate and Nitrite "synergy" as a cavitation inhibitor. DCA-4 usually has sodium buffers and phosphates.
DCA-4 is somewhat harder to find, maintain, and optimize. It can be tested with a 3-way test strip, although conversions are available for using 2-way strips.
Stewart
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Joined: May 2004
Posts: 29,380
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From: Central Coast of CA
Speed reading posts bites me again...
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