Originally Posted by Bonz
The filter/design has been used probably on millions of vehicles, it will function as it is designed just fine.
My thought, does a "car" oil filter have the proper bypass pressure relief threshold vs a motorcycle filter? I have read about that potential with regard to spin-on oil filter adapters many guys have put on bikes that originally used cartridge filters. Very different pressure bypass thresholds have been documented in those cases. Also guys using car spin on filters instead of the motorcycle specific spin-on have documented the same thing.
Fram has a motorcycle specific PH6017a that has been their only application for most Honda bikes for a long time.
It appears identical to the PH6607 filter in every way except paint color.
Bypass is 13 PSI on the 6607, 9-15 on the 6017a.
The 6607 has been used by many as a cheaper replacement to the 6017a. Same for the 7317 size filter, same bypass as te 6607.
The 9688 also has a 9-15 PSI listed on Fram's site.
Now this is Fram, so not sure what the exact specs are for the Champ made ST filters, but I am sure they are similar.
Incidentally, Fram recently added the XG6607 as a recommended filter for most Honda bikes.
I have changed the filter on my bike 4 times, and have used "car" filters each time.
ST6607 (older Wix made one), Fram TG3593a, Purolator PSL 14610, and currently a Bosch D+ 3323. I have several more of the TG3593 that will get me through the next 2 years or so.
Only reason I will not use the current ST filters is they have nitril ADV, and for bikes I like silicone. Probably makes no difference, but makes me feel better.