Originally Posted by caucapon
Today I saw a '99 R1100R with an eye towards purchase. The bike had 43,000 miles on it. While it was a bit rough around the edges, I was initially inclined to go ahead with the purchase until I saw the tailpipe. It was black with oil. When I ran my finger along this spot it left a shiny fingerprint down the length of the blackened area. I could see that the oil blackened patch actually had some significant depth.
My wife had an '95 R1100R that burned absolutely no oil throughout her term of ownership, about 10,000 miles. The owner of today's bike asserted that,"They all do it." He indicated that he did have to top off between changes.
I find it hard to believe that a modern boxer necessarily uses oil in this manner. What can you tell me about this issue?
Thanks in advance for any info.
I would consider 43,000 miles low miles for this vintage boxer. As to the oil use, inquire of the owner how he rides the bike. If the bike gets lugged, it will put some oil into the exhaust. Higher RPMs tend to press the rings against the cylinder walls and reduce oil consumption.
If the engine has been an oiler since new, it was not properly ridden during the first 2-3000 miles. These engine once properly bedded in do not use oil. My 2001 never requires topping up. I change engine oil annually regardless of miles using Mobil1 15w-50.