I have a simple question, but it has sent me down a rabbit hole. I want to start changing my own oil in our 2017 Kia Sedona. They recommend a conventional oil 5W30 that meets the ACEA A5/B5 rating. And I can't find any conventional oils that meet this. If I look at synthetics I see Pennzoil Platinum and Mobil 1 has the ACEA A5/B5 rating. I also found that recently (5 years or so) Castrol and others lost the ACEA A5/B5 rating. Seems like something changed to get this certification.
You might say, so, use the synthetic oil then. But I want to do things "by the books" to ensure I don't void our warranty on the vehicle. For example I'll be using OEM oil filters, etc. So if like to stick with a conventional oil if possible.
For reference I live in Ontario, Canada. I've been looking at auto parts stores and the major stores like Costco and Canadian Tire.