We’ve Had Complaints… And We’re Proud of It

In over 25 years of building high-performance oils for the toughest engines in motorsport and industry… we’ve only ever had one consistent complaint:

“Your oil is a nightmare to clean up.”

Good.

If that’s the worst thing people can say about KCK, we’ll take it — and wear it like a damn badge of honour.

Because here’s the thing:
If your oil wipes off with a petrol-soaked rag, it’s not protecting anything.
If it breaks down the moment fuel hits it, it’s going to break down with fuel dilution!

What They’re Really Saying Is…

When people say KCK oil is hard to clean, what they’re actually telling us is:

• It clings to surfaces like nothing else.

• It resists wash-off even when hit with fuel or solvent.

• It doesn’t break down or dilute easily.

• It stays put, even when conditions get ugly.

That’s not a problem.
That’s proof.

The Technical Truth Behind “Sticky” Oil

Let’s get into why this happens — and why it matters.

Ester-Based Chemistry

We use high-end esters in our blends — not because it sounds fancy, but because esters are polar. That means they naturally cling to metal like a magnet. They chemically attract to engine surfaces, forming a boundary layer of protection that resists wipe-off, wash-off, and breakdown.

Hot Blended for Bond Strength

Unlike mass-produced oils, KCK is hot blended — meaning we bring our base oils and additive packages together under high heat and controlled conditions. That creates a stronger molecular bond, so the additives don’t separate, thin out, or become unstable when fuel hits the system.

Fuel Dilution? Not Our Problem

Engines running rich, high-RPM, turbocharged, or E85/methanol-heavy setups often suffer from fuel dilution. Fuel sneaks past the rings, thins the oil, and in lesser oils, destroys film strength.

But KCK doesn’t roll over.
Even with fuel dilution, our oil holds its viscosity, sticks to components, and keeps friction down. That’s why it’s harder to wipe off. It’s designed to fight through it.

If It Wipes Off Easy… It Was Never Meant to Stay

Let’s ask the obvious question:

If your oil wipes off with fuel, how’s it supposed to survive inside your engine?

Fuel dilution happens internally all the time — especially on cold starts, short trips, or track conditions. If fuel in the sump breaks down your oil, you’re running on hope and habit, not protection.

Our oil doesn’t wash off because it wasn’t built for convenience — it was built to perform under fire.

Not Just Motorsport. Everywhere.

This isn’t just about race cars and dyno queens. We see the same thing in:

• Hard-working diesel engines.

• Towing rigs under load.

• Street cars running E85.

• Industrial equipment copping fuel splash.

• Bikes and quads getting thrashed in the mud.

Wherever fuel wants to cause trouble, KCK fights back. It’s stubborn. Relentless. And yes — sometimes messy.

We’re Not Sorry

So if you’re used to wiping your oil off clean with a quick squirt of petrol — you might want to ask yourself what else is that oil giving up on?

KCK doesn’t quit.
It doesn’t clean up easy.
And that’s exactly the point.

One Last Tip for the Shed Guys:

Want to clean up after using KCK? You’ll need something stronger than pump fuel. Try using our Extreme citrus cleaner, KCK Easy Degrease, brake cleaner, or a proper solvent. Or just leave it on your spanners as a reminder: that stuff sticks because it works.

When You See the Smear, You Know It’s KCK

It’s not just oil.
It’s oil that refuses to walk away from the fight.

So yeah — we’ve had complaints.
And they’re the best feedback we’ve ever received.