I have an 07' SG with HD Syn Oil and have normal pressure when riding and very low pressure when at a stop. Appears to have been thay way since new. Never had any problems, even when it was very hot outside and i was just slowly rolling down the road. It got hot, but as long as i was slowly moving, it didnt get to the point of shutting down. Got close a few time, but made it to where i had to go.