# Radiator Question **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [August 24, 2006, 2:39pm UTC](https://forums.speedlife.net/t/radiator-question/16417 "2006-08-24T14:39:49Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Willybeen](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/willybeen/32/7351_2.png) [@Willybeen](https://forums.speedlife.net/u/Willybeen)\ **Post date:** [August 24, 2006, 2:39pm UTC](https://forums.speedlife.net/t/radiator-question/16417/1 "2006-08-24T14:39:49Z")
so my mom mixed dexcool and regular coolant in my car and its formed a sludge which i think is slowing flow through the radiator and causing my car to run a little bit hot… i’ve already done a head gasket, thermostat, coolant temp sensor, and water pump… i really dont want to put much more into it… is there a way to flush out all the sludge… it seems to stick to the sides of the coolant reservoir so i dont think that it will just come out of the radiator unless something is going to assist in breaking it down? theres radiators on ebay for under 100 bucks shipped… i just dont want to do the work to swap em… thanks –william ---
**Author:** ![Willybeen](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/willybeen/32/7351_2.png) [@Willybeen](https://forums.speedlife.net/u/Willybeen)\ **Post date:** [August 25, 2006, 12:26am UTC](https://forums.speedlife.net/t/radiator-question/16417/2 "2006-08-25T00:26:16Z")
anybodyyyyyyyyyyy ---
**Author:** ![nitroinsane](https://avatars.discourse-cdn.com/v4/letter/n/d26b3c/32.png) [@nitroinsane](https://forums.speedlife.net/u/nitroinsane)\ **Post date:** [August 25, 2006, 1:22am UTC](https://forums.speedlife.net/t/radiator-question/16417/3 "2006-08-25T01:22:18Z")
thats shit needs to be flushed out of the engine if that sludge builds up it will block coolant passages then u will overheat ---
**Author:** ![ChevyChase](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/chevychase/32/4952_2.png) [@ChevyChase](https://forums.speedlife.net/u/ChevyChase)\ **Post date:** [August 25, 2006, 1:37am UTC](https://forums.speedlife.net/t/radiator-question/16417/4 "2006-08-25T01:37:53Z")
sitck a hose in there and run your car for like 20 minutes, lol. with the drain open of course ---
**Author:** ![13005TEDGP](https://avatars.discourse-cdn.com/v4/letter/1/edb3f5/32.png) [@13005TEDGP](https://forums.speedlife.net/u/13005TEDGP)\ **Post date:** [August 25, 2006, 4:17am UTC](https://forums.speedlife.net/t/radiator-question/16417/5 "2006-08-25T04:17:32Z")
Buy 2 bottles of the Prestone Flush stuff…(looks like a smaller antifreeze jug) Follow instructions. While you’re at it, mine as well put the yellow stuff in. (made for all makes models and doesnt break down like Dex-Crud, and will mix ok with remnince of either kind. HTH ---
**Author:** ![Willybeen](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/willybeen/32/7351_2.png) [@Willybeen](https://forums.speedlife.net/u/Willybeen)\ **Post date:** [August 25, 2006, 6:03am UTC](https://forums.speedlife.net/t/radiator-question/16417/6 "2006-08-25T06:03:38Z")
think that will help or should i just replace the rad? ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [August 25, 2006, 6:05am UTC](https://forums.speedlife.net/t/radiator-question/16417/7 "2006-08-25T06:05:57Z")
just flush it and refill it, then take it from there, see if ur temp is going above average at all. i wouldnt just jump up and buy a new rad. ---
**Author:** ![ieatpaint](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ieatpaint/32/7311_2.png) [@ieatpaint](https://forums.speedlife.net/u/ieatpaint)\ **Post date:** [August 25, 2006, 9:04am UTC](https://forums.speedlife.net/t/radiator-question/16417/8 "2006-08-25T09:04:03Z")
I’ve got a bottle of radiator flush. We can flush it this weekend or something. I didn’t use it because no amount of radiator flush would fix the hole I had in my old radiator unfortunately. You make the frozen pizza, I’ll bring the radiator fluid.