Originally Posted By: Oregoonian
Motorcraft or Purolator Classic....for OCI up to 5K
Purolator PureOne.....for OCI's from 5K to 8K
Fram XG.... for OCI's 8K to 10K
Mobil 1 EP or Bosch Distance Plus....for 10K to 15K
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03' Ford Focus (2.3L Duratec) / 94,800
M1 5w20EP/ M1 102EP Filter/ OCI: 10,000 +/-
thats a pretty good break down. but i prefer the MC to pure classic because of the silicone ADBV.
bosch premium, K&N, and wix/napa gold should be in there somewhere too