if you cant get a dip stick to fit, when you do a oil change, messure out the right amount of oil and put it in, after it has drained through, pull the dip stick and mark where the level is then file a notch in where the "max" should be, allow 1mm or so as the level will drop when engine runs as it will fill the new oil filter. and then set a "min" mark say 5-10mm below that, then it dont matter about the dipstick you have, it will be right