Originally Posted By: RegDunlop
Last OCI ( about 1100 miles ago) i used QSUD and a purolator classic
I hadnt been reading BITOG RECENTLY SO i did not know the issue with purolator filters tearing.
It seems to be consensus that they tear in the first 1000 miles.
Would I be able to tell if this occured?
How bad is this if it happens?
Should I dump the oil right now and replace the filter?
Remove it and don't worry about it. Basically any other major filter will hold up better so why use a purolator?
I had back-to-back failures at about 3,700-4,000 miles and 3,010 miles by the time I changed my oil. Statistically, those chance of getting a bad filter should be so low that it might as well be that it should not happen... ever. Some filters seem much more likely to fail, look at the spread sheet as a few part numbers account for most failures... but these are also for vehicles with higher production numbers.
As far as when they tear, that is a bit of an unknown. It is not a long distance, but I cant say if it is 1000 or mile 1. I can say that it fails while the oil is still effective. I think that the higher oil standards have been saving purolator on this.
Originally Posted By: Cristobal
Hey, does anyone know what percentage of Pure Ones were tearing? I have one from 2011 production.
We don't have the best picture about the failure rates. My guess it that it is at least as high as 1 in 3 spin-on filters.
It should be less than 1 in 10,000 (or 99.999%). Considering that BITOG has 70+ filter failures, if the failure rate was 1 in 10K, then BITOG had to open up about 700,000 filters to be "normal". However, just my eye-ball inspection of purolator cut-and-post makes the failure rate seem closer to 1 in 3 or even 1 in 2 of purolator posted here.
So even if 1 in 100 filter are failing, you would see 7000 not-torn pics/posts on this website.
Anyone understanding cluster statistics should realize that 70+ filters failures in a small population is significant. How did you think they realized something was wrong with GM ignition or Takata airbag? Did they test every one? No. You just need a small sample to see if something is not right.
Last OCI ( about 1100 miles ago) i used QSUD and a purolator classic
I hadnt been reading BITOG RECENTLY SO i did not know the issue with purolator filters tearing.
It seems to be consensus that they tear in the first 1000 miles.
Would I be able to tell if this occured?
How bad is this if it happens?
Should I dump the oil right now and replace the filter?
Remove it and don't worry about it. Basically any other major filter will hold up better so why use a purolator?
I had back-to-back failures at about 3,700-4,000 miles and 3,010 miles by the time I changed my oil. Statistically, those chance of getting a bad filter should be so low that it might as well be that it should not happen... ever. Some filters seem much more likely to fail, look at the spread sheet as a few part numbers account for most failures... but these are also for vehicles with higher production numbers.
As far as when they tear, that is a bit of an unknown. It is not a long distance, but I cant say if it is 1000 or mile 1. I can say that it fails while the oil is still effective. I think that the higher oil standards have been saving purolator on this.
Originally Posted By: Cristobal
Hey, does anyone know what percentage of Pure Ones were tearing? I have one from 2011 production.
We don't have the best picture about the failure rates. My guess it that it is at least as high as 1 in 3 spin-on filters.
It should be less than 1 in 10,000 (or 99.999%). Considering that BITOG has 70+ filter failures, if the failure rate was 1 in 10K, then BITOG had to open up about 700,000 filters to be "normal". However, just my eye-ball inspection of purolator cut-and-post makes the failure rate seem closer to 1 in 3 or even 1 in 2 of purolator posted here.
So even if 1 in 100 filter are failing, you would see 7000 not-torn pics/posts on this website.
Anyone understanding cluster statistics should realize that 70+ filters failures in a small population is significant. How did you think they realized something was wrong with GM ignition or Takata airbag? Did they test every one? No. You just need a small sample to see if something is not right.
