# Just curious **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** lesabre, buick\ **Created:** [December 10, 2009, 9:57pm UTC](https://community.cartalk.com/t/just-curious/40597 "2009-12-10T21:57:45Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![golfnut](https://avatars.discourse-cdn.com/v4/letter/g/ad7895/32.png) [@golfnut](https://community.cartalk.com/u/golfnut)\ **Post date:** [December 10, 2009, 9:57pm UTC](https://community.cartalk.com/t/just-curious/40597/1 "2009-12-10T21:57:45Z")
the cars i have now use Dex-cool. I’ve read all about the Dex-cool problems? i had the intake gasket changed on one of them. so far so good on both of them? my question is i have a gallon of prestone 50-50- mix left from previous cars— can the prestone (if needed)be used with the Dex-cool. i think the color of both of them— dexcool(orangist) and prestone (green) kind of make me not want to mix them?? but is it o.k. to mix-- just curious?? thanks for any help. have a great holiday ---
**Author:** ![Docnick](https://avatars.discourse-cdn.com/v4/letter/d/ecae2f/32.png) [@Docnick](https://community.cartalk.com/u/Docnick)\ **Post date:** [December 10, 2009, 10:02pm UTC](https://community.cartalk.com/t/just-curious/40597/2 "2009-12-10T22:02:06Z")
NOOOOO!! DEX-COOL appears to be incompatible with other anti-freez specs, regardless of color. If your container specifically says it is the same spec as DEX-COOL, OK, other wise just take it to your recycling depot. I wrecked a radiar a few years back by adding something other than DEX-COOL. ---
**Author:** ![golfnut](https://avatars.discourse-cdn.com/v4/letter/g/ad7895/32.png) [@golfnut](https://community.cartalk.com/u/golfnut)\ **Post date:** [December 10, 2009, 10:08pm UTC](https://community.cartalk.com/t/just-curious/40597/3 "2009-12-10T22:08:11Z")
thanks for the help clearing my mind. i think i will sell the gallon later on!