Antifreeze/coolant products are mostly water and glycol, but about 4% of the formulation contains additives.  That small portion of the mixture does some important things including preventing cavitation on wet sleeve liners and inhibiting corrosion throughout the cooling system.

The phrase “We Blend It, We Back It” is not just an empty promise. FS Lubricants are manufactured at the GROWMARK Lubricants Manufacturing facility in Council Bluffs, Iowa, using the highest-quality base oils and state-of-the-art additives. Our system consistently produces high-quality products and proudly stands behind them. Click "Read More" below to take a virtual tour of our facility.

Our good customer,  Dave Marti, of Dave Marti Trucking in Forrest, Illinois allowed us to come along as the mechanic disassembled his engine after a million miles of service.  Dave had used FS Dieselex Gold and FS Suprex Gold the entire time.  Needless to say, we were pleased with the results.  Click on "Read More" below to see the 13 minute video.