would you run this RP/Champ filter or pass?

I've not been able to find any quoted performance and life specs from seller's websites so for me I won't consider the RP filters. If someone has located specs, please share. Thank you!
I don't think anyone has commented on this yet, but I noticed that per the Ascent tests published here last year that the RP filter he tested appears to have flunked the USCAR-36 resistance to flow spec. From the Ascent chart, the lowest resistance to flow was around 8.8 PSI. Per Service Pro, the SAE USCAR-36 specification put together by Ford, GM, and Chrysler sets the maximum resistance to flow at 50 kPa which translates to 7.25 PSI.
 
I don't think anyone has commented on this yet, but I noticed that per the Ascent tests published here last year that the RP filter he tested appears to have flunked the USCAR-36 resistance to flow spec. From the Ascent chart, the lowest resistance to flow was around 8.8 PSI. Per Service Pro, the SAE USCAR-36 specification put together by Ford, GM, and Chrysler sets the maximum resistance to flow at 50 kPa which translates to 7.25 PSI.
I don’t really follow the USCAR stuff, but isn’t that essentially a Ford-only thing? So if one doesn’t have a Ford, this is kind of a moot point?
 
I don't think anyone has commented on this yet, but I noticed that per the Ascent tests published here last year that the RP filter he tested appears to have flunked the USCAR-36 resistance to flow spec. From the Ascent chart, the lowest resistance to flow was around 8.8 PSI. Per Service Pro, the SAE USCAR-36 specification put together by Ford, GM, and Chrysler sets the maximum resistance to flow at 50 kPa which translates to 7.25 PSI.
There would also need to be a flow rate and oil viscosity associated with the max resistance to flow spec of 50 kPa (7.25 PSI). Did they say at what flow rate and viscosity?
 
There would also need to be a flow rate and oil viscosity associated with the max resistance to flow spec of 50 kPa (7.25 PSI). Did they say at what flow rate and viscosity?
They probably do, but I have not seen the USCAR-36 full spec, only then numbers that Service Pro published. Perhaps someone on this board has and can educate us?

Another interesting thing to note about the Ascent chart is that AC Delco and Purolator, who have to comply with USCAR-36 for their OEM business with Ford and GM, look like they designed their filters to test just under the USCAR-36 7.25 PSI spec. That looks like evidence that the USCAR-36 spec and the Ascent test results are comparable.
 
I don’t really follow the USCAR stuff, but isn’t that essentially a Ford-only thing? So if one doesn’t have a Ford, this is kind of a moot point?
Googling around, looks like USCAR-36 is a voluntary, minimum standard set by Ford, GM & Chrysler, for aftermarket oil filter construction & performance use.

More info:
https://www.sae.org/standards/content/uscar36-1/

"Filters meeting the performance requirements are intended to maintain sufficient durability to support typical 10000 mile oil change intervals. Some OEM engines may require special filters for which this specification would not support."
 
Another interesting thing to note about the Ascent chart is that AC Delco and Purolator, who have to comply with USCAR-36 for the OEM business with Ford and GM, look like they designed their filters to test just under the USCAR-36 7.25 PSI spec. That looks like evidence that the USCAR-36 spec and the Ascent test results are comparable.
That would again depend on the oil flow rate and oil viscosity used by Ascent in his testing. If USCAR-36 calls out a lower flow rate and/or viscosity, then the minimum pressure drop in his testing would be lower than shown, and be less close to breaking through the USCAR-36 minimums.
 
Obviously side stepping ... or perhaps just trolling, lol. 😄
 
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