License Certificates

At Hartland Lubricants & Chemicals, we take the integrity of our products very seriously, which is why you will find our products are manufactured to meet or exceed the most current OEM specifications in the market today.

Our Hartland branded engine oils are API Licensed and GM dexos1™ Licensed, blended with high quality base stocks and additive packages to meet API and GM’s requirements.  You can be assured that our licensed Hartland Dexron® VI automatic transmission fluid is correct for your vehicles that require a Dexron VI fluid as well.

Our API Licensed Tersus Diesel Exhaust Fluid is one of the most pure, precise Diesel Exhaust Fluids available today.