Does a synthetic filter (e.g. Fram Ultra Synthetic) hold up better than cellulose media when the filter gets little usage but remains submerged in oil for several years (i.e. vehicle storage)? Additionally, are the problems associated with paper endcaps (e.g. Fram Extra Guard) in this application? Also, which oil is best for vehicle storage? Synthetic or Conventional? There appears to be some disagreement: Synthetics run off:
Conventionals run off:
Originally Posted by Jimbo
Synthetics inherently "flow" at low temperatures, tending to run off rather than "cling".
Are there any specific oils recommended for vehicle storage?
Originally Posted by NHHEMI
Conventional oil drains off the metal surfaces when it sits whereas synthetic leaves a film.