Tagengine coolant

Searching for engine coolant info? Check out all the engine coolant related articles here on the NAPA Know How blog. We’ve got Know How for all!

Posted January 4, 20211 Comment Know How

‘Check Coolant Level’: What to Know About This Dashboard Notification

Seeing the “Check Coolant Level” warning on your dashboard is often a sign you’re about to have a very bad day.

Adding antifreeze to an engine in a snowy landscape

Posted September 17, 2020 Know How

What Is Antifreeze and what does it do for my engine?

You know about oil, washer fluid and brake fluid, but what is antifreeze? Learn why antifreeze is important for your engine.

Pouring radiator flush into the overflow tank.

Posted August 21, 2020 Maintenance

How to Flush a Radiator

Keeping the engine bay clean is easy, but what about the cooling system? Here’s how to flush a radiator to keep it clean and operating smoothly.

Pouring coolant into a reservoir. You may know coolant colors, like purple, green, and blue, but there's another type of coolant called Hybrid Organic Acid Technology. Here's the lowdown on these super-protective family of coolants.

Posted October 4, 2019 Know How

What Is OAT Coolant?

What is OAT coolant? Can you mix it with HOAT or IAT?

The lengthy grille on a Lincoln Continental shields the car's radiator.

Posted January 4, 2019 Know How

When to Replace a Car Radiator: Key Warning Signs

Your vehicle’s radiator is a vital component that helps keep the engine cool. Here are a few key signs to look for to know when to replace a car radiator.

A driving looking at his car's coolant reservoir tank.

Posted December 27, 2018 Maintenance

When to Change Coolant? Before It Ruins Your Engine!

Regular maintenance is key to engine performance, efficiency and reliability. Knowing when to change coolant will keep your engine cool for years.

Posted December 21, 2018 Know How

Know-How Notes: How to Install Freeze Plugs

Your engine block is full of holes to the outside world. These holes are part of the casting process, where the sand is poured out of the completed block casting. … Continue Reading Know-How Notes: How to Install Freeze Plugs

Posted November 11, 2018 Know How

Know-How Notes: Using a Radiator Vacuum Tool

Vehicle cooling systems are fairly simple, we have covered nearly every aspect of them in various articles here over the years, whether it is diagnostics, servicing, or even just general … Continue Reading Know-How Notes: Using a Radiator Vacuum Tool

Posted October 30, 2018 Know How

How To Make A Custom Radiator Hose

A big part of DIY automotive work is non-standard applications. Whether it is an emergency repair, an engine swap, or a complete custom project, sometimes you just have to make … Continue Reading How To Make A Custom Radiator Hose

Posted September 1, 2018 Partner Spotlight

The Connection Between Coolant And Water Pump Failure

Water pump failure can put a real damper on your day. If you’ve just discovered a pool of coolant underneath your car or noticed it running hot, you might be … Continue Reading The Connection Between Coolant And Water Pump Failure