Wild Hyundai oil grade recomendation

[jorton]

I was only searching "motor oil grade temp chart" when I stumbled on to this message board.


"post Jun 1 2005, 09:57 AM
Post #3

Location: Bratislava, Slovakia, EU
Drives: Hyundai Accent Elegance 1,3 12V SOHC 62kW, Model 2005




QUOTE
My owners manual says if temps are to remain above 0F and expected temps to 100F, use 5 or 10w30. If you go to the Hyundai hmaservice site, it says if temps over 100F, 10w40 would be appropriate.
My concern is that in this small 2.0L 4cyl, high revs and high temps may need the 10w40 for proper protection and I won't be using it. Hyundai should have been able to give me an answer.


Yes, they SHOULD have

Please DEFINITELY GO with 10w40 - if not with 10w50 !!!!

The recommended temperature range are as follows

10w30: -13 F to 100 F (-25Celsius to 38Celsius)
10w40: -13 F to no limit (-25Celsius to no limit)

In other words the difference between the two oils You are hesitating is, the 10w40 has same performance at low temperatures, but works well also above 38C/100F

Attention!
5w40 is for cold climate !!! only below 68F/20C

Source HMA table - Recommended SAE viscosity number by temp."


Is this Hyundai from the moon? What is wrong with 5w-40?

 

[Captain_Klink]

the more flow the better, and 30 weight flows much better than 40 weight, meaning it will carry away the heat better. oil viscosity has some subtleties to it, not necessarily mo thicka, mo betta, all the time. Hyundai engineers are extraordinarily smart. like most engineers.

 

[Nickdfresh]

It's sort of like Mazda "preferring" 5W-20 oil in their V6 Mazda6's. Then saying you can use 5W-40 if 5W-20 isn't available --and never mentioning 5w30...

 

[GhostFlame]

I would use the 5w30 beacause of its ability to flow at cold temps, Unless you live in the desert where tempratures often reach 115 to 120 F in the summer you would be fine with 10w-40. For the rest of us that need to cover a broad range of temps from -5 to 100 degrees year round 5w30 is what I would use.

 

[pbm]

The owners manual of my (long gone) 1992 Hyundai Sonata made similar recommendations. I normally used 10w30 in winter and 10w40 (and occasionally added 20w50) in summer. That was before 'thin became in'.

 

[GhostFlame]

As I always say,, You can't argue with success. but I wouldn't feel comfortable going into a Northeast winter with anything more than a 5w-?? I am on a new kick to get mega miles out of my vehicles(I am tired of wasting money on trading in perfectly good cars that have a ton of life on them. I now buy high end cars with 70,000 to 100,000 miles on them and I hope to drive them 300,000 plus miles...) so, for me I want the flow at cold temps and the lubricity(?is that a word) of synthetic.

 

[bepperb]

I don't think those are that wild. That 12v engine is probably a pretty old design, I'm not sure what quality oil is available in eastern Europe, and running a 40 weight if the temp never drops below 100 degrees doesn't seem unreasonable.