Did you know?

[onetrack]

Have they developed a version of WD-40 for electric mowers yet? 😄 

[Jerry_Atrick]

yah.. its for the wheels

[old man emu]

For freeing rusted threads a 50/50 mixture of acetone and transmission fluid is a cheap alternative. Apparently the acetone reacts with the iron oxide, making it brittle so it breaks when a twisting force is applied. The transmissiion fluid is simply a very thin lubricant. WD-40 is mostly petroleum distillates. I suppose the costliest item is the can it comes in.

[red750]

I understand the WD stands for Water Displacement.