Question about 1999 Cadillac DeVille
I had a blow head gasket on my BMW 6 cyl. and it was blowing white smoke and losing alot of coolant. After doing alot of research I found that all the other brands like blue devil, steel seal, KW and bars all use water-glass. The only company that does NOT USE WATER-GLASS is Dura-Seal. If you have aluminum heads it's very important to use a sealer that can flex with your engine's aluminum heads. The DuraSeal actually stays flexible! So I tried it and it stopped the smoke and overheating. No more coolant loss either. It's been running fine for over a year now. I would reccomend Dura Seal head gasket sealer to everyone... Great product! Also the tech department guys really know what they are talking about...
Posted on Nov 09, 2012
Dura Seal works 240,000 99 Cadillac deville
Posted on Dec 13, 2016
Do not use Duraseal if you have a turbo diesel engine. I tried it on my 2008 Ford F350 6.4 diesel as a last resort after replacing my rad, hoses and other misc. cooling system items. System was air tight after doing the work as I checked with Airlift 5000 and held 25 psi for 2 minutes plus. Oil temp and coolant temps were within 2 to 7 degrees of each other before doing the Duraseal fix attempt. Did it on the weekend of 12-27-2014. After fix, drove truck at least 75 miles and coolant to oil temps deltas were 30 plus degrees without a load, more with a small load on. Local Ford mechanic encountered another person with same problem after attempting to use product. It didn't fix the head gasket problem either. They want you to try another attempt for free but why would you make the problem any worse. They won't refund your money after this either. There is no bending with this company. They claim to formulate for individual engines, so they should be willing to refund the money if this sort of thing happens. The tech was trying to say there was something wrong with the cooler before hand, but that's impossible with the minor temp difference. I even used there flush before doing their procedure. It would be good business practice to refund my money under these circumstances since it didn't work and it clogged a perfectly functioning oil cooler. DO NOT BUY DURASEAL!!!!!!!!! They are a no compromise company! They are unwilling to satisfy when the product doesn't work and does harm to components!
Posted on Dec 30, 2014
I've used a few head gasket sealers in the past, most didn't work and a few like steel seal and thermagasket actually clogged my radiator. The best one I've used has been the dura seal head gasket sealer. I used it on 2 cars and a farm tractor with good results. The tractor actually didn't get a full seal the first time, it got better but it still missed at start-up. I called the duraseal people back and they sent me out a stronger application for free. They did charge me shipping and handling, wasn't to happy about that! But the second application did the trick and totally stopped the miss-fire. Good stuff... I'd recommend dura seal to you.
Posted on Apr 29, 2014
SOURCE: head gasket blown
there are many was a head gasket can blow . sometimes they just leak to the outside sometimes they leak to the coolant and then it blows out your antifreeze. if you have a blown head gasket you will see it when you pull the head. and yes you should hace the head checked at a machine shop and install with a new head set never reuse a gasket .
Posted on Sep 15, 2008
SOURCE: Im going to try steel seal
man...just pull your head and replace the gasket...dont take the chance of ruining your motor by trying a quick fix that may or may not work....its about an hour of time ...
Posted on Feb 09, 2009
exactly what scott said its a temporary fix is all any brands you use will be the same the best i have heard to use is liquid glass
Posted on Apr 30, 2009
i would have the head gaskets replaced, this way , you know that there won't be any more leaks, and sometimes , using the sealer, might not work as good as you need it too.
Posted on Apr 26, 2011
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Posted on Jan 02, 2017
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