Originally Posted By: Motorking
Hello,
I work for FRAM, what you are using is pretty common thing to do for Chevy guys and there is certainly no problem with running the larger filter except for one-
(Please keep in mind all filter companies have the same policy, not just FRAM)
If you ever had some kind of failure related to the oil filter, the very first things that claims people do is look up the part number. If it is not correct for your engine, they will automatically deny your claim. The claims depts staff are not mechanics, they are trained to check proper application first. That said, it's really a non issue as Chevy owners have been running the 373 on small blocks since the beginning of time. I use a 7317 on my nissan that calls for a 6607 because it is an inch longer and it just makes me feel better. That said, we get letters every week from Chevy truck owners with more than 500k. Look up Scott Lipford on Youtube, he is a little over the top in his zeal for FRAM but his Sonoma now has over 600k miles on it, enegine has never been apart/
It's nice to hear someone actually understand and validate the filter maker position. I have said this for years.
There is nothing "wrong" with using a larger filter as long as it's not physical hazard, etc. But two things should be acknowledged before doing so:
1) when one ventures off the reservation, then the burden of proof is upon the person who made that choice to show that the decision was valid; the product maker can deny warranty coverage and it would be up to the individual to prove that the use was otherwise acceptable in a court or in arbitration. That is a LONG UPHILL battle, because you'd have to prove it with data and studies in lab and field testing; the filter maker has all kinds of data and cash to back up it's engineering application - what do you have past supposition and opinion?
2) there is no proof whatsoever that a larger filter truly makes any tangible different in wear reduction; UOA data does not support this, nor do any SAE studies exist specific to this topic. Folks do it because they "think" it's "better", but no proof exists that this truly manifests into reality. I would challenge anyone to show me the data otherwise! I don't want your theory; show me real hard facts that support the claim.
It may well help to consolidate shelf stock by using common filters for many aplications; that is a true benefit. But that certainly is a small one. You may even find a "cheaper" but larger filter in the same product line; you may save 50 cents or less; again a small but tangible benefit.
While you certainly can upsize a filter, it must be recognized that there is a big risk and little reward.
Caveat Emptor.
