Okay so i just installed my 4.5" rc lift on my 1990 xj, I used a canned substance called moovit, I sprayed all bolts once just before I worked on my jeep and I never busted one bolt, and everything came off quite easily.

I personally think it works much better than pb blaster but it does cost a little bit more.

Hopefully this helps someone else

 

we have some of that stuff in the shop...i really dont think its any better, you may have just lucked out with your jeep.

 

we to have it in the shop. I personally have only used it once or twice. didnt see a difference to justify the cost. I stick to PB

 

perfect timing for this thread, i've been sprayin pb blaster on my bolts bc im puttin on my lift soon. i might have to look into that

 

maybe I did get lucky, but it definitly worked

 

Even better is 50/50 Acetone/ATF. As the Acetone dries it pulls in the ATF and will loosen rusted nuts and bolts.

 

ill put these to the test. I just snapped 1 of my rear upper shock bolts. :O

 

FWIW...
Interesting tid-bit...
Machinist's Workshop magazine actually tested penetrants for break out
torque on rusted nuts. Significant results!

*They arranged a subjective test of all the popular penetrants
with the control being the torque required to remove the nut from a
"scientifically rusted" environment.*

*Penetrating oil ..... Average load*

None ................... 516 pounds
WD-40 .................. 238 pounds
PB Blaster ............. 214 pounds
Liquid Wrench .......... 127 pounds
Kano Kroil ............. 106 pounds
ATF-Acetone mix...........53 pounds

*The ATF-Acetone mix was a "home brew" mix of 50 - 50 automatic
transmission fluid and acetone.*
*Note the "home brew" was better than any commercial product in this one
particular test. A local machinist group mixed up a batch and all now use
it with equally good results. Note also that "Liquid Wrench" is about as
good as "Kroil" for about 20% of the price. *


I haven't tried this mixture yet, and of course this has been around the net for a while, but it is interesting. There is a two page thread on this topic already on another forum that makes for some good reading too.

 

hmmmm. might have to try the atf/acetone mixture

 

I will definitely have to try the 50/50 mix

 

Remember to use Dexron III for early models and ATF+4 for later models.

 

^^LOL!!^^

 

I can see some people getting into trouble messing with acetone though. It's almost as bad as MEK.

 

I sprayed pb on all my bolts for week before i lifted my jeep, and not one bolt broke. I was surprised. I think it also helped that i used air tools. I have heard about the other mixes but pb cost like $3 a can so you cant go wrong there.