Treated fuel question

[SEVEN]

Sense JLR brought up a fuel treatment question I wanted to ask another fuel related question. I buy my diesel from a Bay Area City owner marina. The diesel is treated with additives. Should I add more or am I good just using the treated fuel.

[Boatsb]

Define treated.

[SEVEN]

They say it has additives that algae will not grow in.

[Boatsb]

First algae will not grow in fuel.

Second I'd look to add at least cetane, lubricity and de emulsifiers.

I've not seen any fuel at the pumps treated enough to matter. It's basic marketing.

[SEVEN]

Thanks Scott. The reason I said algae is because a buddy of mine has racor's that are green in the bowl. He called it algae. He's changing them out next week BTW

[finatic]

I met a gentleman several years ago who was on the design team for the 8V92's. He always adds Marvel Mystery oil to his fuel. I started doing the same using 1 gal. per 100 gal of fuel. Helps keep things like valve seals lubricated.

[SEVEN]

First algae will not grow in fuel.

Second I'd look to add at least cetane, lubricity and de emulsifiers.

I've not seen any fuel at the pumps treated enough to matter. It's basic marketing.

I spoke to an expert in Diesel fuel and Detroit's. I asked him if algae will grow in Diesel fuel. I asked because a friend of mine has not changed his filters in God knows how long and the bowl on the Racor is so muddy green you can not see thru it even with a flash light. Here is his quote " algae can grow when ever there is water in the fuel it grows between the two layers. Today it is rare to see water in fuel in the U.S. due to the fuel tanks in ground or above must be double containment with leakage alarms"

[Finalee]

It doesn't take a lot of water to create the layer needed for algae to grow in. Another reason to have a demulsifier.

[Glory]

They say it has additives that algae will not grow in.

"They say"? "They" likely a petroleum engineer, and would never exaggerate to help a customer feel good.

Treat your fuel yourself, be sure!