Originally Posted By: Jim Allen
Originally Posted By: ZeeOSix
Originally Posted By: Jim Allen
IIRC, the P1 is rated by Puro up to 10K ...
That has been debated a few times here. Purolator's website is pretty vague on just how long of an OCI their filters are rated for.
You're right. I was quoting the new syn filter as it turns out... sorry for the error.
I have run a P1 10K but when I go back into my P1 file, which has all the info I have on it, there really isn't anything beyond a 3000 mile, 3 month interval listed (yes, it's on the current P1 page at Puro).
I think Purolator is ultra conservative on their filter OCI info. I have no doubt that a Classic or PureOne could go 10K miles if the engine is pretty clean and the driving schedule is not severe.
Purolator's website actually says:
"Purolator PureONE oil filters should be replaced every 3,000 miles or 3 months depending on the driving conditions - or unless otherwise specified by the vehicle's manufacturer."
That leaves it pretty wide open to what the user deems an adequate OCI. At the very least, Purolator is saying follow your manufacture's OCI recommendations.
Originally Posted By: Jim Allen
My question is: Why is the Pure One rated at 99% @ 20 um where the Syn is only 99% @ 25 um?
My guess is it has to do with the media. Still, 99% @ 25 microns is pretty good.