I have a 2011 F-250 Diesel that I purchased in Nov 2010. I have approx. 28,500 miles on it. Today I notcied that the Check Coolant Additive warning came on. Is this something that needs to be addressed right away, can it wait till my next service? Is the warning a preset from the manufacture and can I just reset it and again wait until my next service?

 

It might be a good idea to check the owner's manual and see what they recommend.