Join Date: Mar 2009
Location: Milford NH & Oceanside CA(N San Diego)SoCal USA
Model: 2008 GL1800 Level 4
When you changed the oil, had you warmed up the motor and oil to running temp? Cold oil is always thicker and the gunk settles to the bottom of the crankcase. Yes old oil can get real grungy if not change regularly, if left to set for a long period, it'll get very thick and gooey from the exhaust gases/carbon deposits that mix in the oil.
Run a qt of Marvel Mystery oil or Seafoam in the fresh oil change for an easy 200-300 miles(continuous easy riding, low rpms, lots of shifting through the gears up and down) and then change the oil and filter again while it is still hot to clean out the gunk in the motor. Run that oil for 500 miles and change it again.
Run Delo400LE 15w40 oil as a lot on this site do. It's a diesel motor oil with great results over many miles of touring use from Canada to SoCal and east, no modifiers to cause clutch slippage and it's only $13/gal at Walmart.
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John 14:6 Psalm 118:19-29
CMA Wings of Eagles-Escondido, Patriot Guard Ryder
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