October 29, 200916 yr Anyone ever try this product to fix a bad head gasket in a Subie? Check out the following website: http://www.rxauto.com/demo.htm I wonder if this product is real or snake oil?
October 29, 200916 yr I've seen a lot of those and it makes sense how they work, so it should seal a HG, but what else is it going to seal? I can see that stuff sealing off a coolant passage that it's not supposed to. It may work perfectly well and you'll have no problems. But is it really that hard to change a headgasket? But this is only my speculation and thoughts, not really any cold hard facts. Twitch
October 29, 200916 yr We had one use it in another board. It lasted a month. headgaskets are the most complicated gasket in the car with the hardest job. On one side is 15,000-20,000 psi, on the other side is 10-80 psi oil, 14psi coolant, and 28in hg. Throw in temps of zero degrees or lower, water temp of 200 degrees, and 4-5000 degrees F, it is not something that a jar can fix. Also since he has to take his car apart now, i am curious to see if it is even fixable since this stuff is an epoxy resin. Fix the car the right way. nipper
October 29, 200916 yr Head gasket fix in a bottle only works if the gasket is leaking coolant to the outside of the engine, like the phase II 2.5l's. They weep coolant out and it steams off of the exhaust, miracle in a bottle will fix that, pinhole leak with only 14psi behind it. Leaks into the combustion chamber can't be fixed without replacing the gasket.
October 29, 200916 yr Actually they have newer versions that claim to repair leaks into the combustion chamber. Thats what i thought he was talking about as that is the usual failure mode for soobys. The external leak i just consider a nusance. nipper
October 29, 200916 yr It'll work great in a car you want to keep running good just long enough to sell. And I can see a lot of people using it for that too. They even throw in a bottle of seafoam to clean the crankcase with! Edited October 29, 200916 yr by Fairtax4me
October 29, 200916 yr Too late to use this stuff? thats only for external leaks, not internal leaks. depends upon the year and mileage of your subaru. If it is under 100K no as we may be able to get sooby to pay for all or part of the repair, if it is over 100K then it wont do a thing. nipper
November 2, 200916 yr I recently drained my radiator and added some new coolant but now I get like a external leak somewhere and it sprays all over my spare tire then drip onto the exhaust causing alot of steam, and sucks the radiator near dry after about 7-8 blocks. I can't find the damn hole and am wondering if that stuff up there will fix my problem or maybe somebody out there knows what I should look for. My ride is a 90' Loyale awd wagon, non turbo Any help with be grateful!!!!
November 2, 200916 yr I recently drained my radiator and added some new coolant but now I get like a external leak somewhere and it sprays all over my spare tire then drip onto the exhaust causing alot of steam, and sucks the radiator near dry after about 7-8 blocks. I can't find the damn hole and am wondering if that stuff up there will fix my problem or maybe somebody out there knows what I should look for. My ride is a 90' Loyale awd wagon, non turbo Any help with be grateful!!!! Sounds more like you have a pinhole leak in a hose someplace. This would not help. nipper
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