Got my 2021 used with 45k-ish miles. It had oil changwes every 7-9k, which I view as inadequate for a DI, Turbo car. So every 6 months/5k for me, whichever is first, and I switched to Valvoline Restore and Protect in my '21 2.0. It is full syn and meets the exact Ford spec. I used conv 5w30 in my 2005 Lexus LS430 for years, but have gotten more paranoid with Turbos, low-tension piston rings, and Direct Injection. so 91+ Top Tier gas, full synth oil, every 5k or so. Now I just need to drain-and-fill my trans when I hit 60k. I might even throw in a bottle of Techron for first time in my life. My LS430 in 21 years old with 170k miles, so every 6 months has certainly not hurt it, although that was with $40 oil changes until recently.