Hello Scotty. I have a 2001 bmw 530i with lpg conversion.I just watched you video on how to clean the intake valves. The injectors of the lpg system are drilled and installed into the intake manifold. Does that mean that the lpg will clean the valves by itself or it won't?

lpg is a gas,, odds are it won't clean anything. Liquid gasolline is a very good solvent, gas it not

Thanks Scotty