I have a Baja reaction 150 and even in my manual it says to fill with .9qt. of 10w-30. However the dipstick registers full with almost a half quart. Now I have been pulling the plug and the filter screen plug when changing oil so it's not that! So what's the deal, do I ignore the dipstick? Do I only put a half quart in? Do I have the wrong dipstick? Do I possibly have a blockage not letting me drain the oil completely? Not exactly wanting to grenade the motor here so I need advice. Thanks in advance