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DexCool fix?

This is a discussion on DexCool fix? within the General Help forums, part of the LSx Technical Help Section category; I've worked on 50,000 dexcool cars and I'm certain that air in the res isn't gonna harm the coolant....

  1. #21
    Moderator Cutlass's Avatar
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    I've worked on 50,000 dexcool cars and I'm certain that air in the res isn't gonna harm the coolant.

  2. #22
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by Cutlass View Post
    I've worked on 50,000 dexcool cars and I'm certain that air in the res isn't gonna harm the coolant.
    That's nice don't really care how many cars you say you've worked on. The point was about what I've heard on this site about dexcool being corrosive and can be damaged or changed by air in the system..
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  3. #23
    Moderator Cutlass's Avatar
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    I'm not trying to start any problems here, just wanted to get my knowledge/experience/opinion out there.

  4. #24
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by Cutlass View Post
    I'm not trying to start any problems here, just wanted to get my knowledge/experience/opinion out there.
    Me either sorry if it came off that way..

  5. #25
    Veteran 0rion's Avatar
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    Quote Originally Posted by Cutlass View Post
    I've worked on 50,000 dexcool cars and I'm certain that air in the res isn't gonna harm the coolant.
    Quote Originally Posted by Smittro View Post
    That's nice don't really care how many cars you say you've worked on. The point was about what I've heard on this site about dexcool being corrosive and can be damaged or changed by air in the system..
    experience trumps "heard" everytime.

  6. #26
    Senior Member Z28Thunder's Avatar
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    Quote Originally Posted by 0rion View Post
    experience trumps "heard" everytime.
    But but what you hear on the net is correct!!!! While time and time again it may be proven wrong... It is on the net... so it is fact... Who would think a ASE Master Technician would have any clue..
    Last edited by Z28Thunder; 01-02-2010 at 11:53 PM.

  7. #27
    Senior Member Too Fast's Avatar
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    X2. I'm ASE Master Certified also.

    But like you say, Z28Thunder, if it's on the 'net, it must be true!


    I'm trying to dispell the Dexcool myth along with Cutlass. We know it's poor maintenence more than anything else. And, poor design causes the gaskets to leak, if it was the Dexcool causing them to leak, I always remind people of how many intake gaskets I replaced in the early '90s, on the Oldsmobile 307 V8. Those cars had green coolant.

  8. #28
    Your dealership guy konigandy6's Avatar
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    The dexcool is not corrosive if maintained. The coolant has a operation life of 5 years or 100k which ever comes first. What is happening is aluminum oxide is forming in the coolant due to 2 different kinds of metals touching and creating a static electric charge... and chemical reactions and what have you mixed with condensation blah blah blah... Bottom line it is the deposits that are corrosive and causing the damage, not the coolant itself. Clogging radiators, damaging gaskets, etc.

    So flush your systems with a chemical power flusher and you will all be alright.

  9. #29
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    Quote Originally Posted by konigandy6 View Post
    So flush your systems with a chemical power flusher and you will all be alright.
    I did a full service on our cooling system last spring, flushed the system, changed the stat and all the hoses. I recall that the factory service manual for our '02 specifically advised against using a chemical flush. Not sure the reason as I have used chemical agents in the past on our other cars. Fortunately, our cooling system was in great shape and we had essentially no buildup visible in the radiator or block passages after 71,000 miles. Dexcool came out and Dexcool went back in.

  10. #30
    Your dealership guy konigandy6's Avatar
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    Quote Originally Posted by pajeff02 View Post
    I did a full service on our cooling system last spring, flushed the system, changed the stat and all the hoses. I recall that the factory service manual for our '02 specifically advised against using a chemical flush. Not sure the reason as I have used chemical agents in the past on our other cars. Fortunately, our cooling system was in great shape and we had essentially no buildup visible in the radiator or block passages after 71,000 miles. Dexcool came out and Dexcool went back in.
    My mistake... remove the word "chemical" but still needs to be a power flushing machine.

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