So I just joined a Volunteer Fire Department (Midway VFD, Midway FL) and being the good BITOGer that I am, I checked out the fluids. OOOH, oil was a quart lower and more black than sin. It was supposedly serviced before they acquired the truck from Forestry in December... I don't recall the mileage, I'll check back and repost, and put up some pics for fun! Suggestions on oil/filter and OCI? I wanna be a good probie and take care of the equipment we have... The truck doesn't see too many miles per week, since the station averages about 220 calls per year, and other odd ball trips, but mainly short trips and lots of idling. Anything else I should look for/be aware of? Thanks in advance!