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So today I finally decided to go full synthetic. Mobil 1 Racing 4T 10W-40. Filled 3 full bottles and changed the oil filter too. When I started the bike up, the idle 'seemed' kinda low. Hovering around 1000 rpm as I read standing next to the bike. And the bike kinda sound like it's sputtering. So I adjusted to what I thought was between 1250-1350rpm and the engine sounded better. I was standing when I read the gauge. However, when I lowered my head to be 'parallel' with the gauge, that reading was more like 1500 rpm. So the reading depends on the angle (where your head is). So the question is, how do you correctly read the readings? Should I be sitting, standing, putting my face right in front of the gauge?
Also, another question is does going from convention oil to synthetic affect engine idle, and if so why?
Also, another question is does going from convention oil to synthetic affect engine idle, and if so why?