98deville Posted April 22, 2009 Report Share Posted April 22, 2009 I'm changing out the radiator and would like to know what type of coolant to put in. Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 22, 2009 Report Share Posted April 22, 2009 ONLY GREEN, dont use Dexcool in a cast iron engine Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
98deville Posted April 23, 2009 Author Report Share Posted April 23, 2009 Thanks! When refilling do I pour into the coolant tank or the radiator Link to comment Share on other sites More sharing options...
Ranger Posted April 23, 2009 Report Share Posted April 23, 2009 Fill the radiator and then fill the tank to the full cold mark. Check it again after the next couple of runs. Mike, Why do you say no Dex in a cast iron engine? I think my wife's '96 Bonneville is cast iron and has Dex. Link to comment Share on other sites More sharing options...
KHE Posted April 23, 2009 Report Share Posted April 23, 2009 There is no benefit to be realized using Dexcool in an engine that has had silicated coolant in it before as the silicates deplete the corrosion inhibitors from the Dex requiring replacement every two years anyway. I think Mike was referring to the 4.3L V-6 that had issues with Dexcool - only when the owners failed to keep the coolant at the proper level and the inners of the engine rusted and clogged the cooling system. The idiots in the news media distorted the facts so that DexCool was to blame when it was the vehicle owners who didn't keep the coolant at the proper level. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.