Wife's Elantra GT 1.8 Nu (MPI) runs the same on both 5w-30 and 0w-20. Can't really tell the difference. Hyundai lets you run different weights per the manual, so I would say just revel in the permission to run pretty much whatever you want.
Does 5W-30 REALLY protect better than 5W-20?
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Yes, but it’s,like having 3.1 million in your retirement account vs 2.6 When you leave work. Both are adequate, one has more buffer.
I have a 2020 Elantra and a 2018 Sonata. Both have noticeably less start-up clatter with 5w30. I have no idea if that adds to longevity, but running 5w30 in all my cars simplifies things a bit.
Yes there is a BIG reason.
If we are talking about certain hyundai engines 5w-30 will protect better.
Some engines even got pushed into 5w-40 reccomended grade.
The turbo 1.6 I believe.
Propflux01
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I haven’t heard anything about the 1.6T. Source?
Just stay with the 30wt . Just a piece of mind
1 Million = 1 HTHS cP.
If 2.6 Million works, it depends on your lifestyle.
you got it.
Yes, compare vehicle owners manuals from the US vs other countries for the exact same engine. You will notice the manufacturer specs up to 30 and even 40 grade oils depending on temperature and severity of service in other countries. Why? It is fair to assume it has to do with protecting the engine IMHO.
Obviously decide for yourself.
Engine oils spec'd in countries outside of the US are based on price and availability, not protection. Engine oils spec'd in the US are based on what oil was used when tested for CAFE emissions and fuel economy. Do you really think a vehicle manufacturer is going to deliberately use an oil that will compromise an engines reliability just to satisfy CAFE?
If the manuafacture is being extorted with their license to operate by the government, yes they will do what they have to do to stay in business.
Yes I am here. I put 0W-40 or even some times 5W-30 in everything . In my daughters 2010 ford focus I use 5W-20, sometimes when It is discounted., yes I do . The engine is fairly low out put. How many people wear out a properly maintained engine? That should be the question.
My '16 does just fine with 0w-40. Sounds less like it's going to blow up at 6500rpm merging onto the highway. I ran 5w-20 for over 100k on it and my god that engine was loud when really beating it. Of course noise is anecdotal but I can say it definitely had a point above 4500rpm where the noise became increasingly metal on metal in nature. Not so with 5w-30 or above.
IMO anytime you hear what sounds like metal to metal banging together in an engine it isn't good. Especially when something as simple as changing to a 5W30 like you mentioned in your case stopped it vs. a 5W20. For me running a 5W30 in that application would be a no brainer, and I would A$$ume, safely I might add, that the 5W30 is a better choice than 5w20 in that engine.
Manufacturers are not being extorted by the government. They may use any oil of their choosing during testing.
Maybe in a hot climate like here in SC but if you think about it, one very interesting thing, maybe GM knows something we dont? hee hee
Many of their vehicle's use 5w30... like my v6 Traverse, so if 5/30 doesnt protect better then a 5/20 why does GM spec it?
Anyway, owners manual will tell one what to use, never hurts to go up one grade in a hot climate if using a 20 since the recommendation is based on average temperature of a country.
Anyway, I use 5/30 for my wifes 5/20 Mazda too and used it in our previous Dodge Durango v8 before that.
The move to thinner oils has been a harmless trend for auto makers for the past 30 years.
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