I have always used a 0W20 oil that is high in moly both in my Accord J35 and my Tundra. I live in South Texas and have done UOA samples in both vehicles. No issues with 0W20 on both vehicles and I do tow a lot on my Tundra. Now you are going to have people talk about the VCM and tell you need to get a VCM Muzzler. Honda has had issues with VCM in the past. There are 3 generations of VCM. The current generation doesn't have the issues of past generations. Me personally, I had considered a VCM Muzzler at one time but after putting 200k+ miles on my last VCM-2 engine with no issues, I felt it wasn't necessary. I have always used use a good synthetic oil and top tier gas (mainly Shell) on very fill up I'm not talking about higher octane rating i.e. Super unleaded. Top tier gas is a higher detergency gasoline standard than what the government requires and I have never had an issue with VCM-2 and now VCM-3. I am not an engineer and I am just sharing my experience. You will have people try to scare you and say if you don't get a VCM Muzzler you are going to have issues and your engine will blow up. Take it with a grain of salt and do you. There are many people who have had no issues with using a VCM Muzzler but I just have an issue with manipulating coolant temperature and the computer thinking the car has not fully warmed up. Engines are complex and who's to say that that manipulation is not harming things. Again, I am no engineer but the guy who invented the Muzzler supposedly is one and I haven't heard of any issues using a Muzzler at least that I know of. I just never had the issues people are talking about. Not to say there are not any because Honda has had issues with early iterations of VCM. Just do your research and do what will help you sleep at night. I just want to say there are people out there that don't use VCM Muzzlers and have gotten many miles on their vehicle with no issues. My recommendation, it is very important to use top tier gas for the J35 VCM plus the Passport is Direct Injected. I recommend sticking to a high quality 0W20 oil that has a lot of moly. I just have had outstanding results with my J35 when I use 0W20 that is high in moly. Most if not all Japanese car brands has high moly in their own branded oil to include Honda and Toyota.