What type of antifreeze for the 2007 dodge ram 1500?

You need to use a HOAT (Hybrid Organic Acid Technology) antifreeze in Your 2007 Dodge Ram 1500, otherwise You can cause pitting and other damage to Your engine, especially if You mixAntifreeze types - which You absolutely should note do, as it'll also void Your warranty. Additionally, if You use propylene glycol based coolants, You'll get less freeze protection and less corrosion protection in general. The specific coolant part number recommended by the manufacturer is Mopar Antifreeze/Coolant 5 Year/100,000 Mile Formula (MS-9769). This is sold on Amazon as Genuine Mopar Fluid 68048953AB in a gallon sized jug for $28.49, with free shipping, and is certified to work in Your Ram.