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I add 8 ounces of outboard oil to 10 gallons and whatever Power Service recommends per gallon. edit.... I have run my deuce over 7K miles in the last 2.5 years without issue. RL

No Criticism intended. I was suggesting you find some of the other threads about this for further information on the subject. The more you know the better. RL

I would suggest reading this study. It has been posted before. The issue is lubricity. Sulfur is not a lubricant. The process of removing the sulfur in diesel destroys the lubricity of lowe sulfur diesel fuel. Original fleet testing proved this with modern injector pumps being destroyed by the...