The Stovebolt Site Forums The Shop Area General Truck Talk loosening [chemicals] agents Test Outcome

Let me tell you of an observation I made the past couple weeks. I have a set of ram horn headers that all of the studs have twisted off.
Well, the studs do not go all the way through the hole which leaves a recess in the top. Now, I sprayed the recess full of BP BLASTER on the first header the guy brought me to try. It did soak down but the stud still twisted into.

NEXT... seeing the header worked the guy brought me the other one with the cross over pipe still attached to it. I soaked ONE of the stud recess's with LIQUID WRENCH... It did NOT soak down and was still puddled on top of the stud the next day.

AND.... I soaked another stud with Kroil. It DID soak down, like the PB Blaster.

Conclusion: the liquid wrench is out in my book.
Even though the PB and the Kroil soaked down the studs still twisted into. Perhaps because they had almost rusted into?

Over the years I have tried it all. Over the long haul I favor the Kroil over the PB even though it is a little costlier.

What does all this mean. Well, its not scientific but for me, in my neck of the woods, I just give the nod to Kroil.

OH, and as for the test the guy did. You need at least about 20 "data points" or test results before starting to draw a conclusion. Those of you that know a little about statistical control know what I mean. Basically you don't just do one test but many.... and then you may learn only that stuff is still "inconsistent"!!