Who knows how long it has been since the lug nuts have been off the studs. I have found that a good soaking over time of penetrating oil like in US, P.B. Blaster and wrapp the nuts with a hammer to vibrate.
Try geared wrench again with possible longer bar and bounce your force off and on the bar.
If no go , heat the outer nut with a propane torch or welding torch till oil sizzles and immediately try geared wrench again while still hot.
If no go soak with oil again and repeat.
Last resort heat outside nut dull red with torch and try again...... no go cut outside nut but do not cut thread area and take cold chisel or air chisel and separate nut into two pieces. You can also use cut off wheel in grinder and make slot in nut and chisel off.
Heat, soaking ,vibration, and time will normally work. Some wheel nuts will just not come off. Remember that each side is either left or right hand thread.
A big impact gun may work but it may spin the outside nut with the inner nut and then try to screw the outside rim off the hub studs. If the nuts come off in one piece spinning in the hole and you must cut the outer nut off the inner nut .
Time soaking,heating and repeating will work most of the time.
I took nuts off a storage trailer and it took a month of tinkering and some had to be cut out of the wheels. Good luck Mark
