Re: Cleaning a 50’s OMC tank Home › Forum › Ask A Member › Cleaning a 50’s OMC tank › Re: Cleaning a 50’s OMC tank Doug WilsonUS Member - 2 YearsReplies: 239Topics: 29 March 18, 2018 at 4:10 pm #72665 I have used vintage outboard and Laing’s as well as marine engine. Doug how is it motors multiply when the garage lights get turned off?