It’s simple. PEAK Auto is known for engineering some of the most technologically-advanced antifreezes and coolants in the market. We hate to brag (OK, we do rather enjoy it), but our stuff is so good, it comes with a Guarantee. So when you protect your cooling system with PEAK Global LifeTime or Long Life Antifreeze + Coolant, we’ll guarantee it!* All you have to do is purchase your PEAK Global LifeTime or Long Life Antifreeze + Coolant at a store near you and perform the initial Flush & Fill. That’s it.