I have a '94 Vulcan 1500 with a Tow-Pac. It has 23,000 miles on and had 19,000 when I got it 11 months ago. No problems with it except a mysterious loss of approx 1 quart of oil a few days ago. No leaks, no blue smoke, just noticed the oil light began to flicker very dimly when making a fairly hard stop. Immediately stopped, let it sit for a bit and checked oil level to find it down a quart, Red light did not come on while going down the road; only when stopping quickly. Topped it off and no problems since. Any ideas?