OK..I did the bars leak deal. This is the crap that says it will pass through a #24 screen (I think thats what it says on the site) I crushed it up and presoaked it. To me it looks like a fine ground wood powder, which it probably is but it dont float that well...or much at all for that matter.
Went for about a hundred mile cruise and the heat still works so far. I did catch a whif of cool blue during the ride but I will give it a bit of time and see if it works. Said to dump in almost all of the stuff but I only dumped 1/3. I'll be a guneapig vs an all day job venturing into places that I do not want to go.
heres the BS from the site:
Will Bar's Leaks plug my heater core?
No, the tiny particles will pass through a 24 gauge mesh screen which is the spec for the BIG 3 car manufacture. They say that any product installed in the cooling system must pass through this screen. Bar's Leaks is the only stop leak to pass this test and to be approved by the car companies. Note: If using Bar's Leaks to stop heater core leaks, make sure you turn your heater control to HOT. Some vehicles have a valve that controls coolant flow through the core.
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy