Couple of quick questions if someone can help. My boost gauge is only half full of oil, do i need to put a new one on or are they supposed to be this way, it looks likes some has leaked out. Also the sled has had royal purple oil in it since new should i continue the same thing or is there something good enough off the shelf i.e. mobil 1 full synthetic or something similar? I am new to the turbo thing so any advice will help. the sled is a 07 apex with a outlaw motorsports bd turbo