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7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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post #1 of 5 (permalink) Old 01-16-2013, 05:52 PM Thread Starter
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First diesel....Help plz

I have a '94 idi turbo. Im gonna flush the coolant and add fleetcharge. Will I need to add a sca additive? If so what sca would be compatiable with the fleetcharge. Thanks guys.
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post #2 of 5 (permalink) Old 01-16-2013, 05:59 PM
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I just changed my coolant to Fleetguard recently and I believe it already has scas. Atleast that is what it says on the jug.

92 F-250 7.3 IDI (banks turbo), E4OD, 3:55, 4x4
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post #3 of 5 (permalink) Old 01-16-2013, 06:17 PM Thread Starter
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Yea fleet charge is "precharged" with sca but i think you still have to maintain it.
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post #4 of 5 (permalink) Old 01-16-2013, 08:48 PM
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You do, but if you make coolant changes on a timely basis it should not be an issue in practice.

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post #5 of 5 (permalink) Old 01-16-2013, 10:05 PM
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Originally Posted by 94250turbo View Post
Yea fleet charge is "precharged" with sca but i think you still have to maintain it.
IIRC, fleet charge is good for 100,000 miles, and I would test it at 50,000 miles.

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