Engine Coolant Additives
Dober is the market leader in providing quality additive products for heavy-duty diesel cooling systems. Diesel EngineWith a focus on research and development, Dober is unsurpassed in its ability to provide the highest quality antifreeze add packs, solid filter and liquid SCA products to numerous vertical market segments. These markets include heavy-duty trucks, off-highway vehicles and equipment, rail, marine, oil and gas, and new and recycled antifreeze.

We are constantly developing new products and solutions to address the needs of filtration companies and engine manufacturers and their customers. Because of this focus, we have obtained numerous patents that contribute to our dominant technical and market leadership.