What type of antifreeze for 2004 2500 silverado?

Answer 1

There is many types of antifreeze on the market to day, if u need to add some go by the color type u have in it already, like pink/red /orange is premixed and not to mix with other types of antifreeze it may gel up like jello! if never has been changed it most likely orange type, and seven years old! change it out! drain and flush system

use a major brand antifreeze, i would use a premixed antifreeze it cost more and why would spend the extra money? it don't have impurity's that water has in it like lime, lime will build up when heated and will damaged the the cooling system / lead to premature failure of parts. brand is up to you, my 07 Silverado has factory filled (red) and my other truck 08 frightliner has ( pink ) and has 380,000 mile on the same antifreeze it keeps my 600hp engine cool at 80,000 lbs on a 7 percent grade up hill Are you man enough to go pink?.. So go with the good stuff TRUCKS BRING IT!.. :)