Quote:

I found this online. I don`t know if it really works or not.



"Spray away and get your nuts loose!

Independent testing of penetrating oils using a single steel bar with 1/2”x20 nuts torqued to 50 ft/lbs and treated with a 10% salt water solution that was allowed to rust. Listed are the chemicals and required removal torque.

-None ………………… 516 pounds

-WD-40 ……………… 238 pounds

-PB Blaster …………. 214 pounds

-Liquid Wrench ….. 127 pounds

-Kano Kroil ………… 106 pounds

-ATF-Acetone mix….53 pounds "

Interesting stuff.. bottom line is it MUST come out or you will do more damage, I have found often times the plugs that get stuck and break were not tightened properly and combustion gasses foul the threads lots of penetrating oil, easy out and some patience should do the trick

Kevin