I have a 2017 Nissan Murano w/ 18k ODO. Nissan recommends 0w-20 (5W-30 is an option) and I want to stick with Mobil 1 branded 0W-20 if possible. Based on my driving conditions, I choose to go with the M1 0w-20 in Extended Performance Oil with extending OCI to 7.5k from 5k as recommended. But that's only because M1 isn't available in the 0W-20 weight. I've always thought 7.5k OCI on Mobil 1 Full Synthetic is a walk in the park. Why is 0W-20 Mobil 1 available in EP, AFE, and AP, and High milege formulations and not the Fully Synthetic Mobil 1 0W-20? I thought Mobil 1 being quality is not thin oil that sheers or breaks down...I need an education...what am I missing here? M1-EP is easy work and probably overkill and uneconomical/unnecessary for going half the OCI sweet spot. But I'd like to stay with Mobil as my preferred brand based on the Group, certifications and specs and gives me comfort knowing my MDX requires the same grade and keeps it simple for me. Hopefully, this hasn't been discussed here...apologies in advance if it has been discussed here before.