![]() We did it on the 7.3L and added FW-16 if needed. So there should be 4 used test strips if he is showing you the results of the test. You need to use two of the old style test strips and two of the carboxylate test strips. If he shows you one test strip, He didn't test both coolant systems, and he didn't perform all of the test. If you dealer test your truck immediately, He didn't let it cool off. So most owners will never use up a whole test kit.Ĥ. They have an expiration date of about 2 years. The test kits contain enough testing materials to do 10 test. Your truck will need to sit and cool off before the test can be done.ģ. Don't think you can drive20 miles and have your coolant at operational temps and do the test. Coolant should be cool, Not hot when the test is done. You can add this twice during the coolants 105,000 mile life.ġ.You have two coolant systems, The check coolant test need to be performed on BOTH systems.Ģ. This is basically a fatty acid that slowly coats all metal parts in the engine and prevents corrosion. 48 oz to the primary system and 20 some odd oz to the secondary coolant system. You can add the VC-12 Coolant Rejuvinator. If you fail the Corrosion Inhibitor test. Chances of this testing positive are really low unless somebody added the wrong kind of coolant when topping off the system ![]() If you test positive, you need to flush and refill your coolant system. Past generation of coolant all had Nitrites, So the test strips where looking for a positive indication, The new Speciality Orange coolant does not have any Nitrites and your test should show Zero for any Nitrites. (the first two test can be done with the older style test strips, The last test requires some new vials orange cap or clear cap depending on the coolant color) You will check for Nitrites, Freeze Protection and new test for Reserve Alkalinity. The message pops up to remind the owner o check their coolant. ( the coolant will eat the older style gaskets and seals) So it's only being used in newly designed engines. This coolant is not backward compatible with older designed engines. It will become their universal coolant in time. The 6.7L uses a new coolant that Ford is gradually moving all engines to around the world. So some folks will see it about every 13,000, Some at a longer interval. It varies a little depending on idle time/towing/hiway miles. The "Check Coolant" message will pop up about every 15,000 miles.
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