Anyone else ever have a problem getting the x-fire to check it's own oil level with the on-board system? I've read the owners manual (I know!) about 10 times and tried to get the thing to work about 40 different ways to no avail. Supposedly the computer can tell you if your oil is too high or low? I just check it the old fashioned way anyhow, but it still bugs me! Anyone with any thoughts?