Going to go look at maybe get a '53 4104. I will try to attach a pic of the engine.Will want to use spin on filters as this seems to be the way to go, especially with the fact the bus has sat for awhile. 1.So, is there anything speciall I should look for in spin on, brands to use/avoid? (or maybe you think spin on are a waste if so tell me)2. Also where do I get this stuff, truck supply stores I guess, any good ones to suggest (minnesota) or national chains to look for?3. Engine kill is inoperative, (p.o. used clutch and brake to stop engine) I believe this is a skinner valve, is it possible to manually switch this in the eng bay? I am guessing that someone overrode all the safeties to keep the engine running, I will probably start by wiring something simple and go from there. Anytips?BTW I am aware that an engine that needs to be stopped using clutch and brakes may be sucking oil, i will determine if that is the cause.4. Finally seems that most of the pics of Detroits I see are branded as such, does the fact that this one says GM mean anything or am I just ignorant ?Actually I know I'm ignorant, that's why I hang out here!Thanks as always for all help in these matters, Patrick