Coolants & Additives

Coolants & Additives covers coolant concentrates and ready-to-use mixes that protect and maintain your vehicle’s cooling system, plus additives that support performance and cleanliness. Here you’ll find glycol-based engine coolants (including concentrated and pre-diluted options), extended-life formulations, and non-toxic propylene glycol variants. You’ll also see rust and scale inhibitors, water-pump conditioners, and flushing or cleaning additives aimed at restoring efficiency. When comparing products, look at the base chemistry (organic acid, conventional, HOAT, or hybrid formulations), intended climate or season, compatibility with your vehicle, and whether the product is a concentrate or premixed. Always follow manufacturer guidance for mixing ratios and service intervals.