Hey car owners, this Zerex G05 coolant is the real deal for keeping your engine running smooth! It's that exact same chemistry approved by Ford, Chrysler, and Mercedes for their newer engines - both gas and diesel. The Hybrid Organic Acid Technology (HOAT) is seriously smart, combining the best of conventional and organic acid chemistry to give you ultimate protection against rust and corrosion. It comes pre-mixed 50/50 with deionized water, so you just pour and go - no messing with mixing ratios. The yellow formula protects against freezing down to -34°F and boiling up to 265°F, which covers pretty much any weather you'll encounter. What's really impressive is the 5-year/150,000-mile guarantee against engine failure from freeze-ups or boil-overs. The high-quality virgin ethylene glycol and additives protect all your cooling system metals including aluminum, plus it's safe for gaskets, hoses, plastics and your vehicle's finish. This stuff has been batch-tested in labs and fleet-tested in real world conditions, so you know it actually works. Seriously, if you want to maximize your engine's life and performance, this is the coolant to use.