New to GDI engines

[wemay]

O. Filters
I have used Purolator, POne, Champ (Firestone), Valvoline (also probably a Champ), WIX and Bosch. Not one issue with any of them on:
Hyundai Veloster
Hyundai Santa Fe Sport 2.0T
Hyundai Sonata

GDi reliability
Strict adherance to the mfr maint recommendation is critical, no matter what is prefered, synthetic or conventional. Changing your oil on-time is the most important factor. It appears that gone are the days of the avg Joe saying, 'Heck, i was supposed to change my oil 2000 miles ago. Oh well, i'll get to it this weekend'.

 

[wemay]

DI engines typically have a stratified burn mode (ultra lean) where the ignition can occur during compression stroke. Not too mention the injector has to be able to withstand the pressures of combustion so that air/fuel doesn't get pushed into the injector opening and sent up stream into the fuel line.

Thanks to member, wrf01a for the following:
There is a little bit of false information here that really needs to be fixed. Not all DI engines are the same and I will reference Hyundai because I am familiar with this engine. The Super High Pressure is needed because the fuel is injected just before or during the Power Stroke, NOT the intake stroke in most DI Engines.

In the Hyundai Theta II, The fuel injection is split into two phases. In the first phase, the pilot injection occurs on the compression stroke, milliseconds before ignition. The main injection phase occurs after ignition, during the piston’s descent, more fuel is injected and ignited as necessary. In the Hyundai fuel is injected after the intake valve is closed.

In the Hyundai, 2170 PSI is needed because fuel is injected during the Compression Stroke and the Power Stroke.

Hyundai recommends top tier gas or Hyundai Fuel Injection Cleaner because the location of the injector. The main reason for this is to keep the injectors clean.

As far as deposits on the intake valve, most manufactures have fixed that problem. That problem has only Plagued certain models. VW, Audi and Lexus just to name a few.

For more information please read

http://www.edmunds.com/autoobserver-archive/2011/06/direct-injection-fouls-some-early-adopters.html

Scroll down to the part titled All Engines Not Designed Equally and read the first four paragraphs for some accurate information.

Lets put a stop to all this inaccurate information.
_________________________

 

[SteveSRT8]

six, eight, or even more injection events can occur in DI engines. This is nothing new, as diesel owners will attest.

Multiple ignition events can also occur depending on the car.

All mfgrs do things differently, I have been railing about this for years. Platform specific info is always welcome, but usually is not given or is muddled up by the re-telling...

 

[artificialist]

I was told of the Hyundai specific filters when the 3.3L and 3.8L V6 engines received cartridge filters. Does your engine use a cartridge or a spin on? If it uses a spin-on, I would just buy a high grade aftermarket unit.

 

[wemay]

Originally Posted By: artificialist
I was told of the Hyundai specific filters when the 3.3L and 3.8L V6 engines received cartridge filters. Does your engine use a cartridge or a spin on? If it uses a spin-on, I would just buy a high grade aftermarket unit.


1. Spin on
2. Why?

Not that I wouldnt/haven't used aftrmkt...

 

[KCJeep]

From what I've read and experienced, it is the spin on models that are most likely to complain about and aftermarket filter. Any good cartridge seems to work just fine. I've used nothing but Wix made Napa Golds in ours for nearly two years now without issue.

With the fuel dilution and the manual allowing 5w30, I see no reason to run 5w20 in the Hyundai/KIA's. Since you'll need to stick to fairly short OCI's to maintain that great warranty, a good conventional or synblend for a buck more seems a sensible choice.

 

[artificialist]

Originally Posted By: wemay
Originally Posted By: artificialist
I was told of the Hyundai specific filters when the 3.3L and 3.8L V6 engines received cartridge filters. Does your engine use a cartridge or a spin on? If it uses a spin-on, I would just buy a high grade aftermarket unit.


1. Spin on
2. Why?

Not that I wouldnt/haven't used aftrmkt...

2. Because a premium aftermarket filter has better particle removal at 25 microns, as indicated by earlier posts.

 

[wemay]

Originally Posted By: KCJeep
From what I've read and experienced, it is the spin on models that are most likely to complain about and aftermarket filter. Any good cartridge seems to work just fine. I've used nothing but Wix made Napa Golds in ours for nearly two years now without issue.

With the fuel dilution and the manual allowing 5w30, I see no reason to run 5w20 in the Hyundai/KIA's. Since you'll need to stick to fairly short OCI's to maintain that great warranty, a good conventional or synblend for a buck more seems a sensible choice.


All fair points although I have no qualms using a 5w20.