seekingbuddha
Thread starter
The very purpose of paying a premium price for a filter like RP is to be able to use it for long range. If i can not use it for at least as much as Mobil extended filter, then i would not be considering it. M1 filter is rated for 15k miles. Between my cars, i have over 100 k now (reusing either RP or M1 filters), with no damages so far.