Ironic but I also did my oil today. The first quart and a half went in well enough but I had to slowly fill, stop, let the level go down, add a little more oil and repeat. I had about a quarter of a quart to go and I didn't think it would fit in but it did, little by little.
2013 Chevy 3500HD CC dually
2014 Voltage 3600 toy hauler
2019 RZR 1000XP TRE