News

KCK infographic explaining when to change differential oil based on mileage, time, workload, towing, off-road use, heat, water and oil condition.
4WD Differential Oil

How Often Should You Change Your Differential Oil?

How often should you really change your differential oil? The answer isn't simply a number on the odometer. Discover how towing, heat, off-road driving, water crossings, motorsport and workload cha...
KCK infographic explaining why gear oil gets hot, covering friction, sliding contact, load, towing, heat, oxidation and severe-duty lubrication.
4WD Gear Oil

Why Does Gear Oil Get So Hot?

Your differential doesn't need to be broken to be cooking its oil. Discover where gear-oil heat comes from, how friction, sliding contact, load and towing affect lubricant life, and why the right f...
Differential Oil: Why It Matters More Than You Think
4WD Differential Oil

Differential Oil: Why It Matters More Than You Think

Your engine oil gets plenty of attention. Your differential oil? Not so much. But behind the scenes, that oil is protecting gears and bearings from heat, pressure and load every time you drive. Fro...