# Use Dex Cool in GM car or switch to universal during changeout?

**URL:** <https://community.cartalk.com/t/use-dex-cool-in-gm-car-or-switch-to-universal-during-changeout/80344>\
**Category:** Maintenance/Repairs\
**Created:** [July 15, 2013, 5:59am UTC](https://community.cartalk.com/t/use-dex-cool-in-gm-car-or-switch-to-universal-during-changeout/80344 "2013-07-15T05:59:13Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![keith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/keith/32/5518_2.png) [@keith](https://community.cartalk.com/u/keith)\
**Post date:** [July 15, 2013, 6:53am UTC](https://community.cartalk.com/t/use-dex-cool-in-gm-car-or-switch-to-universal-during-changeout/80344/6 "2013-07-15T06:53:55Z")

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It doesn’t matter, but since you already have the universal, I would use it. DO NOT USE THE FLUSH chemical. Drain both the block and the radiator and then just refill with the new coolant with a mix of 2:1 antifreeze to distilled water. It will be good for another 5 years or so.

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