Lubricating system Volvo D24 Volvo 700/900 (-1993)

Oil mist around the sump, a sweating drain plug or an oil filter that has begun to seep around the sealing surface are classic wear points as the D24 approaches high mileage. Such things should be checked at every oil change, since a tired copper washer or hardened seal is often the cause behind small leaks that are otherwise misread as more expensive faults.