Why We Don’t Sell Oil Additives — And Why That’s a Good Thing
additive-free engine oil benefits

Why We Don’t Sell Oil Additives — And Why That’s a Good Thing

Most aftermarket oil additives are bandaids for bad oil. At KCK, we don’t sell them — because we don’t need to. Our oils are hot-blended and fully loaded from day one, with nothing left out and not...
Zinc in Engine Oil: Hero, Hype, or Has-Been?
anti-wear oil additives

Zinc in Engine Oil: Hero, Hype, or Has-Been?

Zinc has been the backbone of anti-wear protection for decades. But does more mean better? And are all zinc additives created equal? Let’s break it down — the myths, the facts, and why KCK oils get...