My dilemma: New BMW diesel.Planning to change the oil more often than free maintenence plan /warranty allows/requires (every 6 months vs every year).The surgeon who recently replaced my hip has told me that my days of changing my own oil are *over* (that is,crawling under a car).Unlike with my past cars the oil filter of the diesel is right there up top...easily accessible in the engine compartment.My question is..I've read that there are devices with which you can extract a car's oil from the crankcase through the dipstick channel.Is this true and,if so,what are they called and where do you get them? And are there any caveats in using them vs draining the old fashioned way?
TIA
TIA