Hello I recently bought a 05 R1200RT with 15500 miles. Nice bike still getting used to it. My first real trip was about 200 miles to the dealer for 12000 mile service. I check the oil level it was 3/4 of the sight glass. just before getting to the shop the check oil came on. The dealer changed oil and filter, used bmw 15-50 syn. I have been riding in hot weather and each time I go to an idle the check oil comes on then goes back off when I get going. Has anybody had this happen? Should I be concerned?