Doc what is the safe OCI for a 2012 Montero Sport 10K mileage, using Mobil Delvac MX and Bosch OM 036 filter? There is currently no supply of bd28 at Volmax so the bosch filter is the only other choice better than Vic and Mitsu Oem filter. A very noticeable difference between bosch vs oem oil filter, oil warning light for bosch goes off simultaneously when engine starts; for oem mitsu filter oil warning light goes off 1 to 2 seconds after engine has started.