How to Flush Coolant: Step-By-Step Instructions from Kyle Lindsey

Flushing your vehicle's cooling system should be a part of your routine maintenance, and Kyle Lindsey has the step-by-step process you need. Let him show you how it's done using Zerex in his 1969 Chevrolet Chevelle. Purchase Zerex G-05 Antifreeze from O'Reilly Auto Parts and use code SK04 for 20% off qualified purchases of $100 or more.

[JesusGarcia.F]

Only legends remember this man’s car reviews

[vincemajestyk]

If you don't have any, or minimal aluminum components in your engine the 'old' silicate based green is perfectly fine. You could use HOAT but it's really not necessary. If you ever have a manifold leak in a car with a wet intake manifold and either OAT or HOAT antifreeze you'll find out real quick the benefits of a green 'old' type antifreeze when your bearings get wiped out from the acid. The only reason for HOAT and OAT antifreeze is since they started making all these modern engines out of throwaway metals like aluminum and recycled beer and soda pop cans. It allows longer service intervals without corroding the engines. Neglected silicate AF and aluminum cause high electrolysis. So will OAT, but to a lesser extent. HOAT and OAT are more susceptible to impurities (minerals) in the water, and you get the same thing. Take a voltage reading of your coolant. That will tell the tale.

[rimad]

If it very hard to achieve such clean flush, if you drain only at radiator cap. Again, if you drain only at radiator car, significant amount of water will be left in the system so you cannot use prediluted coolant. Great idea with that funnel. Lot faster to ventilate system. I did not have those, so I taped plastic bottle. Also, very often you don't need to raise car to open a vent - it can be accessed from above.

[patricktidwell]

I'm going to try this stuff in my Chevy Colorado 2.8L I use Valvoline Maxlife in my Engine. And I use Maxlife Transmission Fluid in my Transmission. Iv used Valvoline in my Engine for years. I just started using Valvoline Maxlife in my Transmission and I like it so far but time will tell for sure. Or thats where my Rating will come from but so far so good with Valvoline and like I said its all I use and im using more of it and its impressed me so far.

[bryanhrt]

I found maybe a minute and a half of this video useful

[imwaytogoodlookingtobeyour]

I bought my 2017 challenger brand new back in 2017....then I got my check engine light and checked the plastic thing where you pour water and it was kinda empty...so i put water and engine light went away...now it's brownish the liquid so I need a radiator flush right?...that's the reason I have check engine light.

[joshhaas]

Did you filter and reuse the distilled water for each additional flush or use fresh each time?

[nishadpancholi]

How to drain coolant from the engine block? More than half of the old coolant is still in the engine block with the water.

[danielworden]

It's like buying Craftsman it's a lifetime guarantee only if you keep it I usually end up losing it or blowing a hose

[dragonext]

No one can help with my drain plug 😢 the plug sits behind and against the radiator frame. I really hate the idiot that designed my car. I have a 2008 Buick Lacrosse Super and it apparently has air in the system. The resevior bubbles like it's boiling and all the fluid comes out. Car only goes alittle past half temp, no engine light. Unfortunately I can't get to the plug, the v8 is too big for the car. They have the battery squeezed between the frame and the pulleys under the corner frame with a half inch gap making it a b**h to change and can't be any larger not a centimeter or won't go in.

[stillincarlsbad]

Zerex has a product labeled as for Toyota Lexus... DO NOT USE! Personal experience. I topped off with Zerex and had a negative effect. I then, in turn, bought the Toyota super long life coolant (pink formula) and paid $18 a bottle AT A TOYOTA DEALERSHIP THROUGH THEIR OFFICIAL TOYOTA PARTS WEBSITE compared to $22 at O'Reilly. I had to flush the system because of that top off.

Also, pressure flushing is never a good idea for an older car... Old seals being exposed to pressures higher than the cap is rated for is asking for trouble.