I take very very good care of my cars, and if anything is even slightly wrong, I fix it.
Have a 11 Sonata 2.4L GDI, absolutely love the car. Drives perfect, 40k miles. Pearl white, spotless from Northern Texas.
Bought the car, smelled the oil it smelled like fuel. Figured it was due to short trips by the dealer.
I have been changing the oil out every 3k miles using Chevron Supreme 5w30 and Hyundai OEM filters. After the 3rd oil change, judging by smell alone, I have the fuel dillusion issue under control.
It drives me nuts that after 1500 miles the oil gets jet black. I suppose this is a known issue with these direct injection engines.
So, the car burns about 1/2 quart of oil in 3000 miles. I top it off.
I am trying to get it to burn no oil, so I switched to a lower NOACK motor oil. I chose Valvoline Maxlife Blend 5w30. My next oil change will be Maxlife Full Synthetic 10w30 which has a NOACK value in the 6's. 5w20, 5w30, and 10w30 are all approved in this engine per the book. I will be running the 10w30 in the Texas heat, which gets up into the low 100's.
Now I am reading some articles on low speed pinging in some of the new turbo GDI engines. This is remedied by the OEMs with full synthetic motor oil high in Calcium.
What does the lube have to do with pinging? I thought that was fuel related, or carbon buildup related.
Anyways, on 87 octane, top tier, this thing pings like crazy mostly at low speed. On 89 octane, it still pings.
Does not ping at all on Costco Top Tier 93. Did not expect to have to feed a hyundai sedan premium, but I have been doing it. I'm glad that fuel in Texas is cheap in comparison to many areas, I am paying $2.19 right now for 93.
I have been using chevron techron every 3k miles.
I would like to get the pinging issue on this car resolved, it should run on 87 just fine.
I have no desire to go into the engine and scrape the carbon off the valves, nor should I think that a 40k engine should have carbon on it.
I am considering taking apart the intake hose, and spraying some GDI cleaner in, right before I change the oil next time.
The other thing I am thinking about is plugs. I have read that these plugs get trashed in the GDI engines.
The turbo engine has a 30k interval for plugs, the non turbo is 100k. The plugs are $10 each for OEM denso plugs.
Do you all think that plugs would have anything to do with pinging?
I reluctantly paid the dealer to do a steering coupler in this car a few weeks ago, I asked if there was any new engine calibrations for this computer, they blew me off and said no nothing.