I see questions about filter specs in various threads.
Either someone is asking why they aren't "standard". Or someone posts something they have from a particular supplier.
For the record:
The current SAE testing spec for automotive oil filters is:
HS806-2001
Any filter spec you have that was not run utilizing that spec is an old test. ( Like SAE J806B)
Now that you know what the current "test" specification is, what does that mean?
SAE HS806-2001 is nothing more than a guideline on how to properly set up the test equipment before the test is actually run. Things like cleaning the equipment before running the test. Making sure the equipment is properly calibrated.
From there the filter company or OEM can specify certain test parameters including:
Flow rate
Test dust
Add rate of contaminant
Termination point of the test ( at what restriction)
These variables can be greatly effect the outcome of the test itself. Even though 3gpm is the "industry" standard flow rate, that does not mean every test is run at 3gpm.
Unless you have the full test report and the conditions the test was run under, you will have problems comparing two test results from different filters elements or different filter manufacturers.
If one company adds 5 grams of contaminant every 1/2 hour and another adds 5 grams every hour..what do you think the tests will show? Which filter has the greater "life"?
Another example--Cummins Engine Company requires the use of SOFT-C as the contaminant to run their tests. Any test operated with AC-Fine test dust will not be approved by Cummins in order to meet their specifications.
In the future you may even see ISO as the test information released. There is ongoing work between SAE and ISO to come up with a joint test program in order to create a worldwide specification for filter testing.
SAE= Society of Automotive Engineers
ISO= International Standards Organization
Either someone is asking why they aren't "standard". Or someone posts something they have from a particular supplier.
For the record:
The current SAE testing spec for automotive oil filters is:
HS806-2001
Any filter spec you have that was not run utilizing that spec is an old test. ( Like SAE J806B)
Now that you know what the current "test" specification is, what does that mean?
SAE HS806-2001 is nothing more than a guideline on how to properly set up the test equipment before the test is actually run. Things like cleaning the equipment before running the test. Making sure the equipment is properly calibrated.
From there the filter company or OEM can specify certain test parameters including:
Flow rate
Test dust
Add rate of contaminant
Termination point of the test ( at what restriction)
These variables can be greatly effect the outcome of the test itself. Even though 3gpm is the "industry" standard flow rate, that does not mean every test is run at 3gpm.
Unless you have the full test report and the conditions the test was run under, you will have problems comparing two test results from different filters elements or different filter manufacturers.
If one company adds 5 grams of contaminant every 1/2 hour and another adds 5 grams every hour..what do you think the tests will show? Which filter has the greater "life"?
Another example--Cummins Engine Company requires the use of SOFT-C as the contaminant to run their tests. Any test operated with AC-Fine test dust will not be approved by Cummins in order to meet their specifications.
In the future you may even see ISO as the test information released. There is ongoing work between SAE and ISO to come up with a joint test program in order to create a worldwide specification for filter testing.
SAE= Society of Automotive Engineers
ISO= International Standards Organization
