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Most resilient oil to GDI intake desposits please #4570755
11/11/17 11:46 AM
11/11/17 11:46 AM
Joined: Jun 2006
Posts: 4,977
Great White North.. eh
webfors Online content OP
webfors  Online Content OP
Joined: Jun 2006
Posts: 4,977
Great White North.. eh
Let's hear the experience and opinions flow.

What oil brand, viscosity, and spec is the most resilient to contributing to intake carbon deposits on GDI engines.

I've read many threads, on many forums, for many different types of GDI engines. There is consensus that a full synthetic (whatever that means...?) shows clear signs of reducing the intake deposits. I suspect because of syns tolerance to high heat and a higher quality base oil with lower noack.


17 Cadillac ATS 2.0T, Edge D1G2 5w30, XG10575
17 Dodge GC, VWB 5w20, Fram DL11665
15 DL650, Rotella T6 5w40, KN-138
Small engines; RT5 10w30
Re: Most resilient oil to GDI intake desposits please [Re: webfors] #4570764
11/11/17 11:53 AM
11/11/17 11:53 AM
Joined: Mar 2017
Posts: 5,469
Soviet State of Washington
PimTac Offline
PimTac  Offline
Joined: Mar 2017
Posts: 5,469
Soviet State of Washington
It is not all due to the oil. How you drive the car is the bigger reason. Short trips are killers for GDI engines as they are for other engines as well. Lack of proper maintenance is another. Oil is just one part of the puzzle. You can run the very best oil but if you short trip all the time you will have problems.

Gasoline quality is another factor.


2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter

Re: Most resilient oil to GDI intake desposits please [Re: webfors] #4570808
11/11/17 12:49 PM
11/11/17 12:49 PM
Joined: Feb 2013
Posts: 10,712
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline
Joined: Feb 2013
Posts: 10,712
Phoenix, AZ
Ok I'll ask again.

Does anyone have any evidence that intake deposits on GDI engines really matter? That it's causing any problems? Not the completely full cannoned up engines, that's obvious. But the usually amount we see.

Sounds to me it's like bird poop on your car, people thinking it won't run as long.


2015 Hyundai Sonata 2.4L 84k Mobil 1 AFE 0w30 & OEM
2000 Toyota Camry 2.2L 230k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: Most resilient oil to GDI intake desposits please [Re: webfors] #4570824
11/11/17 01:09 PM
11/11/17 01:09 PM
Joined: May 2006
Posts: 4,015
Central Wisconsin
dwendt44 Offline
dwendt44  Offline
Joined: May 2006
Posts: 4,015
Central Wisconsin
Engine design has a lot to do with the deposit
situation.
Early GDI engines from Germany, Audi and VW in particular,
had a serious problem with deposits.
Some MFG's took that seriously and did manage to
slow or reduce the amount that gets on the valves.
It's still a problem however. As mentioned, stop and go driving
is a large factor.
Hopefully, engineers will improve the PCV systems so that deposits
are reduce even more.
With the use of turbos by almost everybody, the situation is getting
worse instead of better short term.
Getting hard to find a smaller engine without turbo these days.
Add in thinner oil (0W-16?) and who knows.
The reduction in power happens gradually so some, maybe many, won't
notice, at least until the rough running starts to bother them.
Us here, will notice sooner than later.

My 2Ę


There's no such thing as:
Too big of a battery,
Too large of a gas tank,
or too loud of a horn,
or too bright headlights.
Re: Most resilient oil to GDI intake desposits please [Re: webfors] #4570847
11/11/17 01:40 PM
11/11/17 01:40 PM
Joined: Aug 2004
Posts: 302
San Diego
FlyPenFly Offline
FlyPenFly  Offline
Joined: Aug 2004
Posts: 302
San Diego
As low NOACk as you can find. Some people say a catch can help but really depends on the engine design. Audi and BMW engines show zero improvement from catch cans. Mercedes six cylinder designs with more efficient PCV systems seem to do pretty well.

Really the solution is a hybrid injection system like the newer Audi designs that spray a small amount of fuel on the intake valves. Everything else, just budget in $500 every 40k miles for a manual cleaning or learn how to take off the intake manifold and do it yourself.


2014 Mercedes GLK350 3.5L DFI
2014 Mercedes E350 Coupe 3.5L DFI
2007 Suzuki Grand Vitara 2.7L V6
Re: Most resilient oil to GDI intake desposits please [Re: FlyPenFly] #4570905
11/11/17 02:43 PM
11/11/17 02:43 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Originally Posted By: FlyPenFly
As low NOACK as you can find.


+1

Re: Most resilient oil to GDI intake desposits please [Re: webfors] #4570913
11/11/17 02:54 PM
11/11/17 02:54 PM
Joined: Apr 2004
Posts: 5,209
Texas
JustinH Offline
JustinH  Offline
Joined: Apr 2004
Posts: 5,209
Texas
What is an example of low noack oil?

I have been using synpower 5w30 in my GDI sonata for the past few years at 3750 intervals.

At 50k the car pinged so badly, I had to run a GDI cleaner through the engine while it was running.

It cleared up most of the pinging issue but about 10k miles later it still pings when the car is cold under load on 87 octane.

I also run techron at every oil change.


'11 Hyundai Sonata GLS
'11 Scion XB
Re: Most resilient oil to GDI intake desposits please [Re: FlyPenFly] #4570916
11/11/17 02:57 PM
11/11/17 02:57 PM
Joined: Dec 2014
Posts: 1,256
California
Vuflanovsky Offline
Vuflanovsky  Offline
Joined: Dec 2014
Posts: 1,256
California
Originally Posted By: FlyPenFly
As low NOACk as you can find. Some people say a catch can help but really depends on the engine design. Audi and BMW engines show zero improvement from catch cans. Mercedes six cylinder designs with more efficient PCV systems seem to do pretty well.

Really the solution is a hybrid injection system like the newer Audi designs that spray a small amount of fuel on the intake valves. Everything else, just budget in $500 every 40k miles for a manual cleaning or learn how to take off the intake manifold and do it yourself.


OR just save the $500 when you reach 100K miles and don't need to do the valve cleaning. I know two people with DI cars over 100K miles and neither has had any IV cleaning and the cars run fine. I'm just happy that BITOG has come around to the concept that DI can be different designs that are potentially impacted by different driving requirements/habits, different maintenance, different gas, and on and on. We're not all gonna die and people can't realistically be called "early adopters" if the new car market is now approaching 50% DI vehicles after going mainstream almost ten years ago.

The OP is looking for a blanket answer to a non-blanket answerable scenario.

Re: Most resilient oil to GDI intake desposits please [Re: webfors] #4570941
11/11/17 03:27 PM
11/11/17 03:27 PM
Joined: Apr 2007
Posts: 2,834
WI.
dblshock Offline
dblshock  Offline
Joined: Apr 2007
Posts: 2,834
WI.
I run TCW-3 in my fuel constant... 23k and counting.


16 Civic Coupe Touring 33k
640:1 TCW-3 E091
Edge 0/40 XG7317
Firehawk Indy 500

06 4Runner SR5 141k
640:1 TCW-3
M1 0/40 XG3614
Falken Wildpeak AT3W
Re: Most resilient oil to GDI intake desposits please [Re: webfors] #4570945
11/11/17 03:28 PM
11/11/17 03:28 PM
Joined: Jun 2015
Posts: 4,225
New England
Virtus_Probi Offline
Virtus_Probi  Offline
Joined: Jun 2015
Posts: 4,225
New England
Seemed like it was a popular layman's opinion to find a low SAPS oil with a low NOACK loss like M1 5W30 ESP.
I'm wondering if PP Euro L (available at WM) might also fit that bill, but I haven't seen NOACK info for those oils.


2014 Forester XT, 86000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter
Re: Most resilient oil to GDI intake desposits please [Re: Vuflanovsky] #4570998
11/11/17 04:38 PM
11/11/17 04:38 PM
Joined: Jun 2006
Posts: 4,977
Great White North.. eh
webfors Online content OP
webfors  Online Content OP
Joined: Jun 2006
Posts: 4,977
Great White North.. eh
Originally Posted By: Vuflanovsky


The OP is looking for a blanket answer to a non-blanket answerable scenario.


Wrong. Iím asking for the experience of others with respect to what type of oil would be recommended in this application.

Iím not asking how to solve all of the problems inherent to GDI engines with a magic elixir.

This is an oil forum right?


17 Cadillac ATS 2.0T, Edge D1G2 5w30, XG10575
17 Dodge GC, VWB 5w20, Fram DL11665
15 DL650, Rotella T6 5w40, KN-138
Small engines; RT5 10w30
Re: Most resilient oil to GDI intake desposits please [Re: Virtus_Probi] #4571005
11/11/17 04:42 PM
11/11/17 04:42 PM
Joined: Jun 2006
Posts: 4,977
Great White North.. eh
webfors Online content OP
webfors  Online Content OP
Joined: Jun 2006
Posts: 4,977
Great White North.. eh
Originally Posted By: Virtus_Probi
Seemed like it was a popular layman's opinion to find a low SAPS oil with a low NOACK loss like M1 5W30 ESP.
I'm wondering if PP Euro L (available at WM) might also fit that bill, but I haven't seen NOACK info for those oils.


This is what I have learned across many forums thus far also.

The Euro flavours of PP look like excellent options. Unfortunately, Pennzoil wonít divulge their NOACK numbers, and they arenít dexos approved. I have a nice bottle of their euro 0w40 sitting on the stash shelves.


17 Cadillac ATS 2.0T, Edge D1G2 5w30, XG10575
17 Dodge GC, VWB 5w20, Fram DL11665
15 DL650, Rotella T6 5w40, KN-138
Small engines; RT5 10w30
Re: Most resilient oil to GDI intake desposits please [Re: JustinH] #4571018
11/11/17 04:52 PM
11/11/17 04:52 PM
Joined: Jun 2006
Posts: 4,977
Great White North.. eh
webfors Online content OP
webfors  Online Content OP
Joined: Jun 2006
Posts: 4,977
Great White North.. eh
Originally Posted By: JustinH
What is an example of low noack oil?

I have been using synpower 5w30 in my GDI sonata for the past few years at 3750 intervals.

At 50k the car pinged so badly, I had to run a GDI cleaner through the engine while it was running.

It cleared up most of the pinging issue but about 10k miles later it still pings when the car is cold under load on 87 octane.

I also run techron at every oil change.


Here is a perfect sample of ďevidenceĒ for those that claim there is none. A quick search online will come with many examples of GDI engines that experience symptoms of carbon buildup. This example is most likely a result of cylinder buildup decreasing volume which increases compression, for which a higher octane gas is now needed.


17 Cadillac ATS 2.0T, Edge D1G2 5w30, XG10575
17 Dodge GC, VWB 5w20, Fram DL11665
15 DL650, Rotella T6 5w40, KN-138
Small engines; RT5 10w30
Re: Most resilient oil to GDI intake desposits please [Re: webfors] #4571027
11/11/17 05:07 PM
11/11/17 05:07 PM
Joined: Jun 2016
Posts: 74
PENNSYLVANIA
Crobinson16 Online content
Crobinson16  Online Content
Joined: Jun 2016
Posts: 74
PENNSYLVANIA
So Mobil 5w 30 esp is a good choice for a gdi?, I have an 2017 5.3 silverado. I want to stay with a Mobil product. But I have not decided on which flavor. I just changed the factory fill 0w20 and put in Mobil EP 5w20. I will run it for the upcoming winter and then switch to a 0w 30 or 5w 30 just haven't figured out which flavor from Mobil. I do some moderate towing and feel a 0w or 5w 30 would be a better fit.

Re: Most resilient oil to GDI intake desposits please [Re: webfors] #4571035
11/11/17 05:10 PM
11/11/17 05:10 PM
Joined: Apr 2017
Posts: 402
Mississippi
Speak2Mountain Offline
Speak2Mountain  Offline
Joined: Apr 2017
Posts: 402
Mississippi
Amsoil
Redline
Pennzoil
esp in 10w

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