Hello everyone. I just acquired this car. Previous owner has been using Castrol dino 10W-40. Engine seems to be fairly clean. Any oil suggestions for this B-18D OHV engine? I plan to stick with dino as the car has about 127,000 miles on it, but a lot of storage time. I have been having good results with Havoline in a Toyota, but am thinking of a high mileage oil for the Volvo. Seal benefit? I think this engine may have felt crankshaft seals.