I've searched around and have not found a straight forward real solution to this issue. My lugs are rusted and stuck, I cannot get them off. I broke a 1/2" drive ratchet with a breaker bar trying to remove them after a day of WD-40 treatment. I bought an air compressor with impact driver setup and did a WD-40 treatment and still they will not budge. I've hit the heads of the lugs with an air hammer, as well as used a 20" lug wrench. They are stuck and stuck good. I need the wheels off for a rotation and to adjust my parking brake. Any advice is appreciated, and after they are removed I will be purchasing new lugs and using anti-seize.
You need a good-quality breaker bar and a three-foot steel pipe. You probably won't break the breaker bar, at least the first time someone overtightens your lug bolts.
I've been through this a few times, and my longer breaker bar's forks are starting to spread. Uh oh. Maybe I need a 3/4" breaker bar, but where will I find a 3/4" 17mm socket?
WD40 will do nothing, and I doubt an actual penetrating oil such as PB Blaster or Kroil will do anything either. The bolt is unlikely to be rusted in place (though it's possible). It's much more likely to be overtightened beyond mortal understanding.
Unless that's a $200+ professional-quality impact wrench, I doubt it will do anything close to 250 ft-lbs. And, for reference, the last time I was faced with overtightened lug bolts, I put my 250 ft-lb torque wrench on the 'loosen' position and it clicked without budging the bolts one iota. So they were a bunch tighter than 250 ft-lbs.
You should buy the good-quality breaker bar and 17mm impact socket, will cost you maybe $50 (I don't know what a good brand and price would be in the US). Yes, having a shop loosen them once may be cheaper, but what will you do the
next time a shop overtightens them?
It's also worth getting a torque wrench. I run my lug bolts up in three steps, 40 ft-lbs, 60 ft-lbs, and 86 ft-lbs (I have the older design lug bolts).
I have a set of Febi/Bilstein lug bolts on order. I hope they're not made in China.