# Fuel Separation Systems on Diesel Vehicles

**URL:** <https://forums.speedlife.net/t/fuel-separation-systems-on-diesel-vehicles/1413579>\
**Category:** NYSpeed Automotive\
**Created:** [May 31, 2018, 1:00pm UTC](https://forums.speedlife.net/t/fuel-separation-systems-on-diesel-vehicles/1413579 "2018-05-31T13:00:19Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Baron89](https://avatars.discourse-cdn.com/v4/letter/b/34f0e0/32.png) [@Baron89](https://forums.speedlife.net/u/Baron89)\
**Post date:** [May 31, 2018, 1:00pm UTC](https://forums.speedlife.net/t/fuel-separation-systems-on-diesel-vehicles/1413579/1 "2018-05-31T13:00:19Z")

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Has anyone used fuel separation systems like [Fass Fuel](http://4wheelonline.com/FASS_Diesel.58306) on their diesel vehicles? What are its benefits?

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**Author:** ![travisn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/travisn/32/5046_2.png) [@travisn](https://forums.speedlife.net/u/travisn)\
**Post date:** [May 31, 2018, 2:42pm UTC](https://forums.speedlife.net/t/fuel-separation-systems-on-diesel-vehicles/1413579/2 "2018-05-31T14:42:41Z")

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I had the FASS fuel and oil system on my 04 duramax. Not sure what you are looking. Have you tried youtube?

This site hyperlinked in your post seems to have some good basic info.  
[http://4wheelonline.com/FASS\_Diesel.58306](http://4wheelonline.com/FASS_Diesel.58306)

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**Author:** ![Onyx\_Z32](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/onyx_z32/32/7581_2.png) [@Onyx\_Z32](https://forums.speedlife.net/u/Onyx_Z32)\
**Post date:** [May 31, 2018, 11:37pm UTC](https://forums.speedlife.net/t/fuel-separation-systems-on-diesel-vehicles/1413579/3 "2018-05-31T23:37:47Z")

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I currently own my first diesel vehicle so I’m not sure how something like this would really help unless you’re constantly filling up with shit fuel. Maybe if I lived in the middle of nowhere and needed reservation gas, etc something like this would help. But $600+ for an unspecified fuel economy advantage seems a bit snake-oily to me. But hey, I’m new to this.

@EvoMR?

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**Author:** ![travisn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/travisn/32/5046_2.png) [@travisn](https://forums.speedlife.net/u/travisn)\
**Post date:** [June 1, 2018, 3:34am UTC](https://forums.speedlife.net/t/fuel-separation-systems-on-diesel-vehicles/1413579/4 "2018-06-01T03:34:49Z")

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It’s mostly to protect the $$$$ injectors and high pressure pump.

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**Author:** ![Baron89](https://avatars.discourse-cdn.com/v4/letter/b/34f0e0/32.png) [@Baron89](https://forums.speedlife.net/u/Baron89)\
**Post date:** [September 11, 2018, 12:50pm UTC](https://forums.speedlife.net/t/fuel-separation-systems-on-diesel-vehicles/1413579/5 "2018-09-11T12:50:12Z")

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Wow. 600 USD is a lot of money.