# 2000 Pontiac Grand Prix- Antifreeze and heater

**URL:** <https://community.cartalk.com/t/2000-pontiac-grand-prix-antifreeze-and-heater/147852>\
**Category:** Maintenance/Repairs\
**Tags:** pontiac\
**Created:** [August 31, 2019, 3:29am UTC](https://community.cartalk.com/t/2000-pontiac-grand-prix-antifreeze-and-heater/147852 "2019-08-31T03:29:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jeff07](https://avatars.discourse-cdn.com/v4/letter/j/71c47a/32.png) [@Jeff07](https://community.cartalk.com/u/Jeff07)\
**Post date:** [August 31, 2019, 3:29am UTC](https://community.cartalk.com/t/2000-pontiac-grand-prix-antifreeze-and-heater/147852/1 "2019-08-31T03:29:09Z")

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I needed antifreeze. Grabbed an antifreeze container and started pouring, I had drain oil in the container. I didn’t pour much in how ever the heater doesn’t put out much heat now. Will a radiator flush take care of my heater problem?

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [August 31, 2019, 1:34pm UTC](https://community.cartalk.com/t/2000-pontiac-grand-prix-antifreeze-and-heater/147852/2 "2019-08-31T13:34:01Z")

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I doubt the heater problem is caused by waste oil in the coolant. A flush to get the oil out is a must but don’t expect your heater to start working again. Post back with what you find after a flush and tell us a lot more about your car so we can help.