Sea Foam in oil of diesel generator? [SOLVED] 0 Answers Can I add Sea Foam Motor Treatment to the oil in my diesel generator? Asked by Alex C. In - Az Add AnswerCancel I have this question too. Submit Ask a Question Hide Suggestions Most answers will appear on this page within 24 hours. Be sure to state your question/s clearly. It always helps to include basic details about your engine like make and model! Submit