# What is your filter.

**URL:** https://forums.speedlife.net/t/what-is-your-filter/249961
**Category:** Shift518 Automotive
**Created:** [January 26, 2010, 6:00am UTC](https://forums.speedlife.net/t/what-is-your-filter/249961 "2010-01-26T06:00:03Z")
**Posts on this page:** 1
**Showing post:** 65

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### Author: ![Vovchandr](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/vovchandr/32/6275_2.png) [@Vovchandr](https://forums.speedlife.net/u/Vovchandr)
#### Post date: [January 27, 2010, 5:19am UTC](https://forums.speedlife.net/t/what-is-your-filter/249961/65 "2010-01-27T05:19:57Z")

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> [@Crunk at Hybrid.](https://forums.speedlife.net/t/crunk-at-hybrid/28768/7):
>
> Other than Jeff no one has added anything to this thread other than their opinion.
> 
> If you aren’t testing your oil with different filters (i.e. sending it to Blackstone Labs for analysis) then your opinion is useless. Maybe someone will post up how many PPM zinc was in their last oil cycle with a certain filter.
> 
> Also people should know many OEM filters are made by the same filter distributors being named here as inferior. Auto manufacturers source plenty of their parts from third party suppliers.

Thank you.

Blackstone testing isn’t necessary in this case since there is an abundance of information and testing done on the matter on the net already. I just wish the members didn’t overlook the original question of “why?”, much less mentioned their % filtration knowledge.

The reason I bring this up is because I was appauled recently when a friend of mine went to the Toyota dealer to get his filter. I didn’t have a problem with him buying the filter but what I did mind is when he told me that his reason was that it’s the best, without any facts/data or information to back up his claim. That didn’t sit right with me so I wanted to shine some light on the subject.

Something to consider when somebody mentioned that PureOne is restrictive.

> Fram: 1.6  
> K&N: 5  
> Amsoil: 5.3  
> STP: 5.3  
> Napa Silver 5.6  
> Napa Gold: 7.5  
> Purolator+ 7.5  
> Bosch 10  
> Mobil 1: 10  
> Pure1 12.9  
> Motorcraft: 20  
> Fram TG: 24.5

numbers listed reflect the adjusted drop in pressure in each filter

Source.

> **[BOBISTHEOILGUY FILTER TESTS](https://bobistheoilguy.com/forums/threads/bobistheoilguy-filter-tests.24132/#post-314996)**
>
> Guys, (and gals), Joe, and myself, all have been working to put a flow test together on filters. There has been a few others that have some knowledge of our attempts and have sent us some items to assist in this as well.
> 
> Now in an attempt to do...

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