Ed Hall Posted July 20, 2006 Report Share Posted July 20, 2006 This is a continuation of the following topic: http://caddyinfo.ipbhost.com/index.php?showtopic=10192 I finished installing the new radiator on my 1993 Allante. Everything went very smoothly and it wasn't too bad of a job. I'm ready to fill her up with coolant but I would like to know what the coolant capacity is on this car. The capacity should be the same as an Eldorado or Seville with the Northstar engine. I buy the unmixed antifreeze so to get 50% ratio, I divide the coolant capacity by half and add that amount of antifreeze. Thanks for your help Link to comment Share on other sites More sharing options...
MAC Posted July 20, 2006 Report Share Posted July 20, 2006 According to the 94 GM Service Manual (page 6B2-8) the "full factory fill capacity of the system [Northstar] is 11.8L of 50/50 mixture of coolant." This is equal to 3.12 gallons. Link to comment Share on other sites More sharing options...
WarrenJ Posted July 20, 2006 Report Share Posted July 20, 2006 The 1995 manual also states 11.8L (12.5qts). Now if someone with a '93 manual would only chime in . . . . Regards, Warren There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises Link to comment Share on other sites More sharing options...
growe3 Posted July 20, 2006 Report Share Posted July 20, 2006 The coolant capacity is 12.3 qt. After a complete drain, approximately 1.15 qt. will remain in the engine. After draining: . Add two tubes of Bars Leak Gold to the lower radiator hose. . Refill with the green coolant only. . The best way to refill, is to premix the coolant to a 50/50 ratio. -George Drive'em like you own 'em. - ....................04 DTS............................ Link to comment Share on other sites More sharing options...
Ed Hall Posted July 20, 2006 Author Report Share Posted July 20, 2006 Thanks for looking this up. The capacity is lower than I thought. Capacity = 3.125 gal What's remaining in the engine is pure water. I bought 2 gallons of antifreeze. 2/3.125=64%. If I add 2 gallons of antifreeze, it'll be 64% concentration. Is this too high? Link to comment Share on other sites More sharing options...
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