I consider myself pretty handy around the garage but my local dealership insists the first few services on my M109 (1st at 600 mi and 2nd at 4,500 miles) is a must. I have always changed my own oil and filter and done other maintenances to my vehicles, ATVs and boat. Is my new M109 at a technical level that requires everything to be done at the dealership or are they just trying to rip me off? I was planning on buying the OEM Suzuki oil filter for $9.50 and they said to use the Boulevard V-Twin 10W-40 oil in the bike. Is that the consensus?