Charon
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Just from curiosity, and to stir things again, which manual is it that says anything about 2.5 quarts of oil? I just dug out the Owners Manual for the LS650, dated May, 2006. Under SPECIFICATIONS, CAPACITIES, it says "Engine oil, without filter change, 1800 ml (1.9 US quart). With filter change 2000 ml (2.1 US quart)."
In Chapter 7, INSPECTION AND MAINTENANCE, Page 7-15: "Engine Oil Level Check. Follow the procedure below to inspect the engine oil level. "1. Start the engine and alllow it to idle for a few minutes. "2. Stop the engine and wait for three minutes. "3. Hold the motorcycle vertically and inspect the engine oil level through the engine oil level inspection window. The engine oil should be between "L" (low) and "F" (full) lines."
There is a bold print CAUTION note saying: "The engine oil level must be between the "L" (low) line and "F" (full) line, or engine damage may occur. Check the oil level, through the inspection window, with the motorcycle held vertically on level ground before each use of the motorcycle."
Further on, Page 7-18, toward the end of the oil changing instructions, it gives the oil quantities again as 2000 ml (2.1 US quart) with filter change, and 1800 ml (1.9 US quart) without.
I am not going to argue with those of you who overfill and do not have any damage, nor those who overfill to have a little "extra reserve oil" for high-use engines. I do know, from my brother's experience, there is a level of overfilling which results in the engine spitting oil into the airbox, then inhaling gulps of that oil and emulating a mosquito fogger. His was filled beyond the top of the window with the bike on the stand, but I have no idea how much oil he put in it.
I will have to say I am amazed that, in a 10-page thread, I am the first to actually quote the Owner's Manual instead of guessing what it says.
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