I just put a little over 20 hours on the machine and I'm about to do my first oil change. I'm still learning about all the differences in oils. I know the break in oil is mineral based, but should I be switching to a full synthetic so soon or should I continue running mineral oil?

I've chosen full synthetic Mobil 1 4T 10W40, but I've seen others use regular SAE 10W40... should I be using a specific blend for 4-stroke engines?

I just bought the US Overland 1000 2023 - My ATV didn't come with any turn-signals but I've noticed on youtube some of these look to have factory turn signals and caution lights. Is this a difference in based on the local of the ATV?