John's 4X4 Center
6367 Arapahoe Rd, Boulder, CO 80303 303.449.2640

Engine and Exhaust

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Choosing the Right Washer Fluid

During the colder weather months, drivers find themselves using more windshield washer fluid. Street surfaces are generally sloppier and can kick up snow, salt, mud and grime that require washer fluid...
Published on: Feb 06, 2023

Use the Correct Fluids in Your Vehicle

Big advances in automotive technology have led to the development of high-tech fluids to keep pace. A simple example of this is the cooling system. For decades it was primarily made out of iron, steel...
Published on: May 07, 2022

The John's 4X4 Center Guide to Proper Fluids

If you’ve walked through the automotive fluids section of an auto parts store, you’ll know how overwhelming the sheer number of products available can be.  How do you know what’...
Published on: May 15, 2021