Diesel fuel additive.. how much and how many times? - FordTough.ca - Home of Canadian Ford Truck Enthusiasts

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post #1 of 5 (permalink) Old 07-16-2013, 10:18 PM Thread Starter
Join Date: Apr 2009
Location: St-Lazare,Quebec
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Diesel fuel additive.. how much and how many times?

Hi Guys, i have a 2009 F250 and there is a lot of people telling me to add a fuel diesel additive in the thank everytime i go put fuel... i dont fill up that tank everytime cause its a fortune but how many times i have to put additive in a month if i go put gas 4 times a month? I use my truck only in weekends (it's almost 5 years i have it and only 40000Km on it, so you have an idea how much it works.. )

if we put too much can it hurt the injectors or the engine? And which brand do i buy? KLEEN DIESEL seem to be the norm out there!


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post #2 of 5 (permalink) Old 07-17-2013, 01:12 AM
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I don't use any in my 6.0L. I figure with my oil bypass filter, ccv mod. synthetic oil and the AirDog fuel system, my fuel and oil are as clean as can be. The truck runs smooth (and strong) all the time...so I'm happy how it is...and I figure fuel is expensive enough already.

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post #3 of 5 (permalink) Old 07-17-2013, 11:01 AM
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There's 2 additives you should look into.

Main one would be Cetane Boost. Diesel fuel is not rated like gasoline octane. With Diesel you never truly know what your getting so a Cetane Boost additive should be used to help "burn" the fuel more completely. You should use it in every tank. AMSOIL has the product here:
You can find it at any parts store though.

There is also an Injector Cleaner which is supposed to help clean the injectors. The 6.4L doesn't really have a problem with injectors like a 6.0L does (this won't help a 6.0L much) so I would leave it up to you if you want it or not.

In the winter you should look into an Anti Gel formula and use it for every tank especially if you don't run it a lot. It helps the fuel from gelling or freezing in the tank and fuel filter bowls. AMSOIL has it here :
But again you can pick it up at any parts store.

To help your question about how much you have to go by how much the bottle says to use and keep it at that mixture. To own a diesel you have to be able to do math sometimes. Some are a 100:1 mix some are a 50:1 mix some are 32:1 so you need to follow the bottle.

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post #4 of 5 (permalink) Old 07-22-2013, 05:15 PM
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Use the Ford Cetane additive, most of the aftermarket products have detergents in the mix and the Ford stuff isn't badly priced.

I add a bit every fill up from empty and when the bottles done run a tank with no additive it makes a huge difference in a 6.0L on engine smoothness.

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post #5 of 5 (permalink) Old 07-23-2013, 04:22 PM
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I add an additive when I fuel up. Right now I am using Hot Shot Secret fuel additive. I use something antigel during the winter. Normally Diesel Kleen I believe.


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