lobsenza
Registered Member
I recommend the initial oil change at 1000-1500 miles to remove the metal particles from the engine manufacture.
Hi again. The car I'm buying is a ex demonstrator but only has 200 miles on the clock. It's spent most of its life in the show room. It is in fact one year old (build date 4th Dec 2014), but I'm getting a massive discount on the new price. It looks and smells like new. Bearing this in mind, would it be still best to leave the originally fitted oil in until 3000 miles, and then change to Shell, or is the original oil too old already?
That is true, but the car only has 200 miles on it. It was originally a demo, but then was moved to the showroom floor and has been there for awhile according to Nick. So I don't think it is factor in this particular car.As part of the deal you need to get them to change the oil ASAP. I am very familiar with low milage vehicles as I have quite a few. Oil should be changed on a regular 1 year interval ay least unless the car was NEVER run at all.
Here is a good explanation why this is so.
"If you don't put a lot of miles on your car you need to go by time rather than miles for oil changes. Blowby gasses in the crankcase condense to form all kinds of nasty acids that can literally eat up your engine. On a car that is driven every day these condensates get "boiled off" by engine heat, but on a car that only takes short infrequent "trips to the store" these condensates can build up in the engine. So if you have a "granny car" that only drives a few hundred miles per year you should change the oil every 6 months to a year regardless of mileage."
That is true, but the car only has 200 miles on it. It was originally a demo, but then was moved to the showroom floor and has been there for awhile according to Nick. So I don't think it is factor in this particular car.
However, if the car is being sold as used (and the new car in-service date previously started), then it will need an oil change simply because the warranty terms require that it be changed at least once per year, regardless of the number of miles driven (even if zero).
The correct Shell synthetic in the UK for the Hyundai Genesis V6 is Shell Helix Ultra Professional AF 5W-30. However, I would not switch to synthetic until about 3,000 - 5,000 miles with the factory fill, to make sure the rings seat properly with conventional oil.
I used the Shell LubeMatch webpage to find the correct oil and it said Shell Helix Ultra Professional AF 5W-30 for a Genesis V6 starting in 2008. It actually says 5W-20, but I know Hyundai has changed that to 5W-30 for more recent versions of the sedan (you can verify that with your owner's manual).Hi again. Just out of interest I contacted Shell UK to recommend an oil, as it would give some more choice depending on availability of the oils.
They recommended Shell Helix Ultra ECT C3 5W30 and stated,
Based on our references and database, Helix Ultra ECT C3 5W30 is the recommended oil for a Hyundai Genesis 3.8 V6 (2015). This is a fully synthetic oil and it indeed exceeds the API SM requirement stated in your manual - Helix Ultra ECT C3 5W30 is approved up to the API SN performance standard which is backward compatible to API SM.
Any comments, and how relevant is this ECT?
Many thanks
Nick
All xW-30 motor oils should have a similar Viscosity @ 100°C. Higher is not better, but should be within the range appropriate for a 30 weight oil. The acceptable range is somewhat wide, but the 12.02 viscosity for a 30 weight oil seems high to me (comparing other brands of 30 weight synthetic oil).https://www.google.co.uk/url?sa=t&r...NFAB9iP0aKnAHw&bvm=bv.110151844,d.d2s&cad=rja
https://www.google.co.uk/url?sa=t&r...DS.pdf&usg=AFQjCNF2wSTdKbxEpcy_Kn_BN__kseRRrA
Hi, the above links show the data sheets.
Interesting to see the flash point of
AF = 192°C
ECT = 240°C
Viscosity @ 100°C
AF = 9.5 cSt
ECT = 12.02 cSt
The higher temperature flash point of ECT suggests to me less degradation in use. The viscosity is higher. What is an optimum viscosity at normal running temperatures. Is the higher viscosity better?
If you want to call Shell back, and make sure they know you have a Genesis sedan, and not Genesis coupe, that might be good.
As them why their website says AF for the sedan (based on link I gave you).I've emailed them back for clarification and await a response.
One more post and I am done on this subject (hopefully).I got a reply but they felt they may not have had all the correct information, so emailed everything I know plus more info from the owners manual (USA type, I can't find one for RHD, but then it is the same car). Waiting for reply.
cheers
Nick
I already pointed out that they had the viscosity wrong, and it should be 5W-30 for the 2015 V6.Hi, I received this from Shell.
At least they answered and are being helpful.
Any comments?
Don't pay any attention to that. Shell makes fine products, but it is basically a paid advertisement as part of the global agreement I mentioned earlier with Hyundai. In the USA, Hyundai recommends Quaker State oil (owned by Shell). But I doubt there are any dealers who use Shell motor oil, because they can probably find cheaper ones to use.Interesting to see in print that they recommend Shell Helix.
That is a little confusing, but it appears that newer synthetic oils have lower ACEA ratings, including Mobil 1 products, so I would not worry about it. Keep in mind that Hyundai does not even not specify synthetic oil for the Genesis, so any 5W30 synthetic product you use will far exceed the requirements that Hyundai mentions in the owner's manual.May I ask this? You say That Shell Helix Ultra Professional AG 5W30 is ok to use. But Hyundai specify ACEA A5 (or above) and you say AG is ACEA A3?