Skip the auto shop - Our mechanics make house calls

Q: Coolant

asked by on

I just bought a 2001 Chevy Impala 3.4 v6 and I was looking it over and I seen it has green coolant in it but it calls for dex cool should I flush it or is it fine with green .. Cause I Ben reading about dexcool in junk

My car has 11356 miles.
My car has an automatic transmission.

A: Dex-Cool is what GM recommends for your car...

Dex-Cool is what GM recommends for your car. The only issues that may arise with Dex-Cool or any other coolant are usually from lack of maintenance.

Also, Dex-Cool and the "green" stuff do not mix well. The mixture can become acidic and well as clog the small coolant passages.

If the cooling system was completely flushed of Dex-Cool before the green stuff was put in, then all should be fine. If you are unsure if the system was flushed properly, you may want to have the cooling system flushed and refilled.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: When I press the gas pedal the engine revs but the car doesn't accelerate. Is this a throttle or transmission issue?

Hi there. From what you are saying it sounds like there is a failure in the throttle body. When the motor in the throttle body fails, the throttle plate will open and close causing the noise you are hearing. I...

Q: When I press the gas the car does not accelerate but instead makes a high rev noise.

Hello. If the car is in "Drive" and you attempt to accelerate from a standing start and yet the car does not move forward, you have a problem with the transmission (perhaps the linkages) and/or torque converter. The misfire code...

Q: Broken dog bone motor mount causing me not to have 5th gear , need to know that's why I don't have it

Usually if one motor/engine mount is worn or broken, the remaining mounts are most likely badly worn and probably need replacement as well. Especially if the vehicle has been driven for some time with one broken mount. That puts added...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...