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#4663667 - 02/12/18 09:28 AM GDI engines and oil changes
ford46guy Offline

Registered: 06/01/13
Posts: 509
Loc: Albany, NY
Good oil and proper OCIs seem critical. My GS350 has a dual injection system (High and low pressure injectors). The high pressure pump is driven off the camshaft. The place that sold it to me said a 5K oci is critical to keeping the car running well. The filled it with PP synth HM and said not to use anything else. I did some research and that seem to be the case.
95 Tbird V8 240K PP SYNTH ULTRA 5W30
98 MGM 160K M1 HM 5W20
96 Explorer EB V6 159K PP SYNTH HM 5W30
95 Conti 155K MC 5W20
11 GS350 90K PP HM 5W30

#4663685 - 02/12/18 09:42 AM Re: GDI engines and oil changes [Re: ford46guy]
knerml Offline

Registered: 04/05/05
Posts: 433
Loc: NE Ohio
Very informative. Thank you.
2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W20 & OEM (Mann W811/80) Filter
2011 Kia Sorento 2.4 Valvoline SynPower 5W20 & OEM (Mann W811/80) Filter

#4663743 - 02/12/18 10:31 AM Re: GDI engines and oil changes [Re: ford46guy]
Speak2Mountain Offline

Registered: 04/07/17
Posts: 301
Loc: Mississippi
Thats a good oil I'd stick with. Still, I'd be curious if you could extend that out maybe 2500 miles. I'd do 1 UOA at 5k and see if you could get some more miles on that.

I have a DI Lexus and Blackstone said I was good for about 6.5K-7.0K

#4663760 - 02/12/18 10:40 AM Re: GDI engines and oil changes [Re: ford46guy]
wemay Online   happy

Registered: 04/04/12
Posts: 8390
Loc: Southeast Florida
Nice read, thanks!
17 Hyundai Sonata 2.4 | RP 5w20 | OEM | WIX
13 Hyundai Santa Fe 2.0T | PP 5w30 | OEM | WIX (Wife)
18 Honda HR-V 1.5, CVT | FF 0w20 | OEM | OEM (Mom)

#4663762 - 02/12/18 10:43 AM Re: GDI engines and oil changes [Re: ford46guy]
WyrTwister Offline

Registered: 01/13/13
Posts: 1143
Loc: Texas
My thought is oil / filter changes are kind of like flushing a toilet . Both dispose of things you do not wish " hanging around " .

Our little Sonic does not have a turbo or GDI ( for which I am glad ) .

I change oil pretty frequently , partially because I wish to try to keep the little oil passages in the cam phaser assembly clean . The cam phaser is an expensive repair I wish to avoid .

Keeping the rest of the inside of the engine as clean as I can , is an additional benefit .
God bless

#4663878 - 02/12/18 12:20 PM Re: GDI engines and oil changes [Re: ford46guy]
KCJeep Online   content

Registered: 06/30/11
Posts: 6955
Loc: Mahzurrah!
That appears to be a part that could actually benefit from one of the high efficiency oil filters as well.
04 Jeep Grand Cherokee 4.0 147k - GTX 5w30/10w40
09 Lincoln MKZ AWD 89k - Magnatec 5w30
12 KIA Sedona 83k - Edge 0w40
09 Ford Focus 127k - GTX UC 5w30