"low fluid" appears on info ctr.

[JFK]

Know it pertains to radiator fluid (confirmed fluid is below"max"). Can I top off with only water? Owners manual doesn't specify.
Thanks, Jim

 

[Topzide]

If water, DISTILLED water only! Tap water will cause corrosion and the such. I always have a jug of the correct type of anti-freeze concentrate and distilled water to mix up. Much cheaper this way then buying pre-mix. Once I have it mixed, I usually carry a gallon in toolbox for those just in case time or to help with stranded vehicle. May not be the correct type but at least gets them off the side of the road!

Edit: You will need to make sure when winter approaches, you have the proper mix to protect the truck.