I have a 2010 Hyundai genesis coupe 2.0turbo car at 75,000 miles which ive recently just bought. Car is in a great condition no problems whatsoever and Im coming closely due for an oil change. Ive read through hyundai forums that many drivers of the same vehicle typically use 5w40(or 0w40) opposed to 5w30 in this car mainly for the reason that the car has a turbo and the 40 weight oil holds up better with the high temperatures and gives the engine more protection. For context the owners manual states that I can use 5w30 or 5w40 API SM and above oil but im not sure which one I should go with for the oil change. Many of the 5w30 oils are now ILSAC GF-6 rating and API SP which now are more targeted to modern engines with trubochargers and GDI which help with LSPI. And many of the 5w40 oils are rated with API SN and usually are marketed as European oils. Scotty(or anyone) if you can recommend which oil weight and rating I should go with for the longevity and protection of my engine and turbo and point me in the right direction on which I should run my car with. 5w30 Gf-6(API SP) or 5w40 API SN
Hello there,
I would suggest to fill it with 5W40 SN oil. Here in Europe we use quite common that type of oil for these type of engine's. People in general always will have the best oil for there cars. Nowadays in my opinion as a car mechanic for 33 years the oils at the market today are not always the best they can make. In mine opinion stick to the 5W40 oil and you will be safe. Change it on a regular time. Here in the Netherlands I advise my costumers to change it max 1 year or 15.000km. the years showed me that this is a safe rule for engine's to live long. Of course you can do it earlier what is a little bit the tendency in the US ...
Kind regards, Kees
At the other hand you could use an American product called Polytron MTC to the oil. A very good additive without any solid particles what is petroleum based and easily can be added to the motor oil. We have also a business here in the Netherlands with this product range. User for stock cars, motorbikes, go karts...e.t.c the friction and wear goes down, even the oil temperature drops in general 5-20 degree celcius. Within stockcar racing we have confirmed that this is true. The product MTC or there oil is available in the US
@kees please copy paste your reply as ‘Your Answer’, below. Thanks.
@kees Ive seen a lot of videos and forums threads about how many drivers of a genesis turbo usually go with 5w40 because of the better temperature range especially with the turbo has it outputs high heat. I did see that Hyundai did release a TSB in 2016 stating that " for better engine protection and long life" to use 5w40 opposed to their out of factory oil 5w20 that comes first with the car. They primarily went with 5w20 for fuel economy but ive read so much on how that oil is just to thin to provide protection in a turbocharged car. Do you have any brand of oils that I should go with? Personally I don't mind spending big bucks on high quality oil such as
liqui-moly but they just have so many options that it just confusing. Ive heard castrol and mobil1 are good options as well. As long as the oil meets or exceeds API SN rating will I be good to go?
I say stick to the recommended oil just make sure you get one of those gf6 oil sold here in the United States that's the high quality oil changing weights is not a good thing if an engine was designed for one way you use a heavier one generally will put extra wear on the engine cams
Thank you for the insight scotty! I did want to mention as well Hyundai did release a service bulletin in 2016 stating that they updated their specifications for their genesis turbo line vehicles 2010 and up and that they should be upgraded to 5w40 for better protection and wear in the engine. However it does already state in the owners manual that 5w40 is an option. Im just not to sure what will be the better protection for my engine and turbo in the long run.