Question about 1999 Buick Regal

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My car is using a lot of coolent, there is no leak in the radiator.

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Problem is with the 'dex-cool' coolant(red) that GM insists on using; when it gets old or turns acidic or whatever...and it eats up the motor intake gaskets; GM v-6s are affected by this;(google dex-cool' problems and you will see for yourself); these gaskets will need replacing and once replaced....flush out dex-cool completely and replace it with the green will not have any problems after that..

Posted on Nov 11, 2010

  • b_h_y99 Nov 11, 2010

    try 'thermagasket' ( from opposed to an expensive gasket replacement.. works for head gasket repair and probably intake gaskets.. it solved the problem for my S10..v-6; follow their instructions...and it repairs within minutes; it will save you many dollars!



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