Too much soot? Yanmar 6LP-STE

[Norseman]

Been using this stuff the last 100 gallons, seen quite an improvement, not much soot or smoke anymore.

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[Nancy's Promise]

Thanks. I will give it a shot.

[catalina_mike]

They have taken the good stuff out of our diesel so Cetane is helpful so I use Lubrication Engineers fuel additive. My friend has sold their products for 30-40 years. He has also helped diagnose friends engine issues with oil analysis. It really tells the story so I trust his opinion religiously. https://www.lelubricants.com/fuel-treatments.html

[elad9000]

Cetane booster worked for me. No more smoke. Easier starting. Smoother idle. Better fuel mileage. Can't go wrong.

[Nancy's Promise]

My boat would get a lot of soot build up on the side of the boat. I had it checked by my mechanic. What he found was this plug was missing from the after cooler. The missing plug was causing low turbo boost. The funny thing is the boat ran fine with no lose of power.

[Tree]

My boat would get a lot of soot build up on the side of the boat. I had it checked by my mechanic. What he found was this plug was missing from the after cooler. The missing plug was causing low turbo boost. The funny thing is the boat ran fine with no lose of power.

I thought the little bit i had on the water line this year from the hot weather was bad - sure your engine isn't coal powered??!!!