Duramax Diesels Forum Truck of the Week
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Old 06-18-2010, 03:36 PM
DuramaxTireSmoker DuramaxTireSmoker is offline
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Default Best Fuel Additive??

Whats the Best attitive to get? Have been using marvel mystery oil. Is there something out there that is better for the injectors and MPG yet still carries a low price tag? Thanks
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Old 06-18-2010, 03:44 PM
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Originally Posted by DuramaxTireSmoker View Post
Whats the Best attitive to get? Have been using marvel mystery oil. Is there something out there that is better for the injectors and MPG yet still carries a low price tag? Thanks
Stanadyne is good
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Old 06-18-2010, 04:06 PM
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where can i find it?
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Old 06-19-2010, 12:43 PM
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I use RBP's High Performance attitive...
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Old 06-22-2010, 02:35 PM
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Whats the Best attitive to get? Have been using marvel mystery oil. Is there something out there that is better for the injectors and MPG yet still carries a low price tag? Thanks
monster diesel additive

I run 2 stroke oil & amsoil additives. Ive never compared the difference in mileage with or with out but it is quieter & has a little more pep with the additives
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Old 07-26-2010, 02:58 PM
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i heard amsoil is good stuff. but i dont know were to buy it. maybe bumper to bumper or oreily?
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Old 07-26-2010, 04:19 PM
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B5 or B20.

It cost the same as normal diesel and has better lubricity than an additive on the market. Some say that they experience lower mileage but I have gotten the same all the times I've run bio-diesel. It is amazing stuff, will clean the heck out of the fuel system, to the point of needing to change the fuel filter shortly after running a few tanks through.

I've also used Power Service. It's not the best but it is readily available and somewhat cheap.
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Old 07-26-2010, 04:43 PM
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B5 or B20.

It cost the same as normal diesel and has better lubricity than an additive on the market. Some say that they experience lower mileage but I have gotten the same all the times I've run bio-diesel. It is amazing stuff, will clean the heck out of the fuel system, to the point of needing to change the fuel filter shortly after running a few tanks through.

I've also used Power Service. It's not the best but it is readily available and somewhat cheap.
And schaeffers makes a bio additive if bio isn't readily available to you.
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Old 07-27-2010, 03:21 PM
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I use a mix of Bio and 2 stroke. You don't need more then B2 or 2% bio in a tank which comes out to 1/2gal. for a fill up(26gal.). Much over B20 and you will notice a mileage drop. I lost 1.5mpg on B50 or so. I use Howes in the winter too since it seems to work the best with Bio.
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Old 07-27-2010, 06:07 PM
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Quote:
Originally Posted by 07dirty View Post
i heard amsoil is good stuff. but i dont know were to buy it. maybe bumper to bumper or oreily?
www.amsoil.com
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Old 05-29-2011, 04:45 PM
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I use the GM Diesel Additive every 1,500 miles, but may shorten to every 1000 miles. The diesel tech at the dealership recommended changing it every 15K, but I've already have to replace the injectors and am paranoid about them going bad again.
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Old 05-29-2011, 04:53 PM
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Stanadyne. IIRC, this is the recommended fuel additive sold at GM dealers, or was. Works very well, and you can hear and tell the results quickly.
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Old 05-29-2011, 05:13 PM
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I use Cen-Pe-Co's fuel additive in my truck and really like it. I use it in every tank.
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Old 05-29-2011, 05:50 PM
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2 stroke oil
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Old 05-29-2011, 06:30 PM
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I've had great results with 2 stroke
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