george_n_texas Member Sep 20, 2009 #1 Anyone use this stuff? Is it really smokeless? I have used risoline in car engines in the past which seemed to make em run quieter. They also claim to reduce buildup and make engines last longer ect.
Anyone use this stuff? Is it really smokeless? I have used risoline in car engines in the past which seemed to make em run quieter. They also claim to reduce buildup and make engines last longer ect.
