Suby conditioner or Radweld Plus?

[cheeseisgood]

So I was planning on trying some of the suby cooling system conditioner, but noticed they also have Holts Radweld Plus available online. Which should I get? I realize that there may be little or no improvement, but want to increase my chances of success and decrease chances of causing more problems. Info below:

87 Westy with internal head gasket leak. PO neglected to mention this when I purchased it 3+ years ago.

Thanks

[larrytrk]

Suby worked well for external leak, don't know about internal!
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[cheeseisgood]

I doubt it will help, but I figure I might as well try. I just want to get the product what will give me the best chance for success.

[Californio]

Try Bar's Leak head gasket repair. Make sure to drain all the coolant first or you will have big big problems--it will turn the coolant into gel wherever it finds it. But the stuff does work. The type that doesn't require draining the coolant, Subaru or other, won't have any effect on internal leaks. I used BL on my 1.9 four years ago, after calling the BL tech support people, and it's still working fine, no leaks, daily driver.

[r39o]

WOW, Mr Californio, you are BRAVE. Most of the time stuff like Bars tends to end up in the bottom of the radiator where it restricts flow and causes an over heat condition. That sort of stuff just plain scares me. But, if it worked for you, maybe it will work for the OP. I had a clogged radiator and it caused an overheat after like 30 miles of driving. This is a keep your fingers crossed thing. If it works then great. If not, then the OP might be in need of a new radiator too.

How do you know it is a head issue anyways????
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[cheeseisgood]

I would have possibly considered trying the Bars if I would have known I had the leak prior to putting in a new radiator. Since the rad is fairly new I don't want to mess with it. I've heard a lot more bad about the Bars than good.

[Californio]

Brave or foolhardy, I don't know. I talked to the guy at Bar's Leak AT LENGTH about this before starting out, and he told me that even though the instructions say you have to have no more than 10% of coolant remaining, it was actually ok to go up to 20%, but don't quote him on that. You can imagine the thoroughness of the coolant drain I did. But it worked.