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


Registered: 06/01/13
Posts: 525
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.

http://www.underhoodservice.com/7-reasons-direct-injection-high-pressure-fuel-pumps-fail/
_________________________
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

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


Registered: 04/05/05
Posts: 479
Loc: NE Ohio
Very informative. Thank you.
_________________________
2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W20 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T GDI Castrol Edge 5W40 & OEM/Mann W811/80 Filter

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


Registered: 04/07/17
Posts: 346
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

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


Registered: 04/04/12
Posts: 8864
Loc: Southeast Florida
Nice read, thanks!
_________________________
2017 Hyundai Sonata Sport 2.4L
2013 Hyundai Santa Fe Sport 2.0T

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


Registered: 01/13/13
Posts: 1505
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 .
_________________________
Wyr
God bless

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


Registered: 06/30/11
Posts: 6996
Loc: Mahzurrah!
That appears to be a part that could actually benefit from one of the high efficiency oil filters as well.
_________________________
09 Lincoln MKZ AWD 91k - M1 AFE 0w30
12 KIA Sedona 86k - Edge 0w40
09 Ford Focus 129k - GTX UltraClean 5w30
00 Chevy Lumina 195k - Supertech FS HM 5w30
04 Jeep Grand Cherokee gone but not forgotten...

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