For all the well-publicised reasons why a very low cold viscosity is good for all engines during start-up when most wear occurs - there's a cost involved as wider range multi-grades usually cost more which comes into any manufacturer's recommendation.OK, I have to ask why? Why 0W-30 and not 5W-30? Where does the OP live that he wants to drop down to a lower start weight?
When Hyundai recommends a weight of oil, even stamps it on engine parts I think I'd go with that. Unless the manual shows a different recommendation for extreme cold temps.
0W30 is just fine!! I am using the Castrol European Formula 0W30 in my 2013 2.0T Santa Fe! It is a true "full synthetic....which Mobil 1 0W30 isn't. I believe the Mobil 0W40 is though...so you might want to go with that for your turbo...esp if you live in a hot climate. I agree that doing some research on "Bob is the oil guy" will open your eyes to a few things...and many common misconceptions!!
Well, great results, maybe, but you only put 3000 miles on the oil and the engine is still breaking in thus the higher iron level at only 3000 miles on the oil (copper as well)and 12,000 on the engine, silicon is elevated also at only 3000 miles but engine is still breaking in and will be for many many more miles. If you continue to do the UOA the trend for the iron and silicon should be to go down. IMO very short OCI, why not the 5000 interval. plenty of TBN left to play with . Iron is mileage dependent to some degree so the more miles on the OCi the higher the iron in theory so I look at iron PPM/1000 miles as the indicator. Silicon, nowhere near the correlation to miles, for the most part, once broken in S/B under 15 PPM,maybe 10 for the OCI. In either case though, not much you can do to change the results, engine should still outlive the rest of the car.I. Cheap changes and great results. See attached oil analysis. We all can learn something from others experiences.
I don't know anything about Bob the oil guy. I've never used synthetic oil. I've never used a "premium" oil. I've owned and operated cars for 55 years. About 50 of those years I owned two cars at a time. When I was young and changed the oil myself, I bought typical Castrol oil, with the blend specified in the car manual. When I've taken my cars to service garages for oil changes, I no longer even ask what they use (let alone tell them what to use, or bring my own oil). For the last several years, or more, I've been taking my cars back to the dealer (Hyundai) for $25 oil changes (sometimes includes a car wash or tire rotation). I don't know what brand or blend oil they use. I doubt it's synthetic at that price...."Bob is the oil guy" will open your eyes to a few things...