Tagwater pump

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

An older F150 in great shape thanks to good maintenance

Posted 3 weeks ago Maintenance

High Mileage Car Tips for Extending Vehicle Life

High mileage car tips for owners who want to keep their cars one more year.

Posted December 2, 20204 Comments Maintenance

How to Replace Chevrolet/GMC Heater Hose Connectors

All GM trucks and SUVs used plastic heater hose connectors (disconnects) for the heater hoses from 1999-2014. The problem with this is that over time, the plastic becomes brittle and … Continue Reading How to Replace Chevrolet/GMC Heater Hose Connectors

Antifreeze spilled on the ground next to a car tire

Posted October 6, 2020 Know How

How to Dispose of Antifreeze

Coolant can be highly toxic and needs to be handled with care. Learn how to dispose of antifreeze properly.

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.

Posted March 11, 2020 Know How

Know-How Notes: How To Use AlumAseal ® Radiator Stop Leak

Few things can get you down faster than a radiator leak. Aside from being a fairly pricey fix, a leaky radiator can quickly lead to overheating the engine. More often … Continue Reading Know-How Notes: How To Use AlumAseal ® Radiator Stop Leak

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?

A coolant cap on a car. There are three major types of coolant, which include HOAT, OAT and IAT. Here's how to tell the difference between the three and four things to know about HOAT.

Posted June 27, 2019 Featured

What Is HOAT Coolant? 4 Things You Need To Know

Engines are complex machines with rapidly moving metal parts and small clearances. And as such, they generate a lot of heat. You already know that coolant is an integral part of keeping your engine from exploding, and you probably also know that you have multiple coolant options that aren’t interchangeable…

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

Posted July 24, 2018 Know How

Engine Thermostat Testing Tips and Tricks For Better Temp Control

Thermostats are very simple mechanical control devices that work until they don’t. There is usually not much in-between partial function. While they are not expensive to replace, testing one that … Continue Reading Engine Thermostat Testing Tips and Tricks For Better Temp Control