Reformulated XL Motor Oil: Stronger for Longer

So, what’s new about reformulated XL Synthetic Motor Oil? In essence, XL protects better for longer, yet costs the same as before. It’s the perfect choice for enthusiasts who want to do something extra for their vehicle.

Why Did We Reformulate Signature Series Synthetic Motor Oil?

Simply put, we reformulated Signature Series Synthetic Motor Oil to solve problems. For all the derision heaped upon the internal-combustion engine, it remains our primary mode of propulsion. And, despite the gains of hybrids and electric vehicles, it will remain so for the foreseeable future.

Why Does My Engine Knock? 3 Possible Explanations.

Boost horsepower in your car or truck

There are a few different reasons your engine might make a knocking, ticking or pinging noise. Let’s break each down and talk about what might be happening.

New Motor Oil Specs are Coming

Time for an Oil Change

As engine operating conditions grow more severe, so do the demands placed on your motor oil. New engine hardware such as turbochargers, direct injection and variable valve timing (VVT) place increased stress on your engine oil.