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gdi and conventional oil #4679455
02/27/18 09:05 AM
02/27/18 09:05 AM
Joined: May 2007
Posts: 367
ogdensburg new york
ernied Offline OP
ernied  Offline OP
Joined: May 2007
Posts: 367
ogdensburg new york
do all gdi engines require synthetic oils?
I use mobil 1 5/20 in both my 2.4 motors but am thinking of changing
to conventional because the oil change reminder will say
change at 5000 miles or six months
and I only have about 2000 on the vehicles seems like a waste of oil
I don" mind spending the money for syn but don't like to waste it either.
at times I use synpower too.


2015 Hyundai sonata.
2015 Hyundai santafe sport
Re: gdi and conventional oil [Re: ernied] #4679461
02/27/18 09:24 AM
02/27/18 09:24 AM
Joined: Nov 2008
Posts: 12,543
NH
supton Offline
supton  Offline
Joined: Nov 2008
Posts: 12,543
NH
Do you "have" to observe the light? How hard is it to reset it?

I mean, I ignore the TPMS light in my cars on a regular basis (have done so too with CEL's even). If I know better...

Are you motors "known" for oil dilution?


2011 Toyota Camry, base, 2.5L/6MT, 163k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 144k, ours
1999 Toyota Camry LE, 2.2L/4AT, 190k, his
Re: gdi and conventional oil [Re: ernied] #4679467
02/27/18 09:31 AM
02/27/18 09:31 AM
Joined: Jun 2002
Posts: 3,505
Chattanooga, TN
Spector Offline
Spector  Offline
Joined: Jun 2002
Posts: 3,505
Chattanooga, TN
Also, and primarily, what does your owner's manual state as to the OCIs? That is the bible when it comes to warranty issues. Your dealer may have programmed the indicator for a shorter interval to get you in the shop more often and that can be changed. So, what does your manual state?

Re: gdi and conventional oil [Re: ernied] #4679470
02/27/18 09:34 AM
02/27/18 09:34 AM
Joined: Apr 2012
Posts: 9,384
Kendall, FL
wemay Offline
wemay  Offline
Joined: Apr 2012
Posts: 9,384
Kendall, FL
You can set the reminder to 12 months/7500 miles (easy to do using multifunction menu). That's what's in your Owners Manual as normal service. To answer your question more directly, the manual recommends using SM/GF-4 "or above". I think you're fine using conventional oil for 4-5k mile changes.

Just one consideration- Castrol GTX Ultraclean is a syn blend (as are other conventional oils), and it's GTX 10W30 comes with a 10% Noack.

Great taste in vehicles btw wink


'18 KIA Sportage LX AWD: Mobil Super Synthetic 10w30
'13 Hyundai Santa Fe Sport 2.0T: EDGE 5w30
Re: gdi and conventional oil [Re: ernied] #4679475
02/27/18 09:42 AM
02/27/18 09:42 AM
Joined: Apr 2005
Posts: 543
NE Ohio
knerml Offline
knerml  Offline
Joined: Apr 2005
Posts: 543
NE Ohio
The dealer set the reminder to 5,000mi/6mo.

Very easy to reset yourself, read the manual.

Normal interval for your Hyundais is 7,500mi/12mo. Severe service interval is 3,750mi/6mo. Synthetic is not required.

However, I would recommend using an Hyundai OEM oil filter.

I am using 4,000mi/4mo intervals using Mobil 1 for my GDI, because of potential oil dilution issues.


2015 Hyundai Elantra Sport 2.0 GDI Mobil 1 5W20 & OEM/Mann W811/80 Filter
2018 Hyundai Santa Fe Sport 2.0T Castrol Edge 5W40 & OEM/Mann W811/80 Filter
Re: gdi and conventional oil [Re: ernied] #4679665
02/27/18 01:28 PM
02/27/18 01:28 PM
Joined: Oct 2014
Posts: 3,899
Utah
CKN Offline
CKN  Offline
Joined: Oct 2014
Posts: 3,899
Utah
In my 2017 Hyundai Santa Fe XL (6 cylinder) the manual calls for conventional oil. It's a GDI motor.


The dealer gives 3 oil changes with a safety check for $99.00. They use Valvoline.

I'm not crawling under the car for that price.

Last edited by CKN; 02/27/18 01:30 PM.
Re: gdi and conventional oil [Re: ernied] #4679702
02/27/18 02:32 PM
02/27/18 02:32 PM
Joined: Feb 2013
Posts: 10,700
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline
Joined: Feb 2013
Posts: 10,700
Phoenix, AZ
You can set the maintenance reminder to whatever you want in the menu. I use 5w30 in mine since the owner’s manual allows it.


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: gdi and conventional oil [Re: ernied] #4679724
02/27/18 02:51 PM
02/27/18 02:51 PM
Joined: Oct 2014
Posts: 11,845
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 11,845
Idaho
Do the cars require syn type oils?


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: gdi and conventional oil [Re: CT8] #4679728
02/27/18 02:57 PM
02/27/18 02:57 PM
Joined: Apr 2012
Posts: 9,384
Kendall, FL
wemay Offline
wemay  Offline
Joined: Apr 2012
Posts: 9,384
Kendall, FL
Originally Posted By: CT8
Do the cars require syn type oils?


No.


'18 KIA Sportage LX AWD: Mobil Super Synthetic 10w30
'13 Hyundai Santa Fe Sport 2.0T: EDGE 5w30
Re: gdi and conventional oil [Re: ernied] #4679750
02/27/18 03:23 PM
02/27/18 03:23 PM
Joined: Aug 2017
Posts: 11
Salt Lake City, UT
RyanL Offline
RyanL  Offline
Joined: Aug 2017
Posts: 11
Salt Lake City, UT
I would use synthetic along with potentially going one viscosity grade higher - both of which have lower volatility. Since DI engines don't have the natural cleaning effect that port fuel injection engines do, reducing oil evaporation is important - Therefore reducing the amount of oil sucked up by the PVC and subsequently deposited on the intake valves.

Re: gdi and conventional oil [Re: wemay] #4679777
02/27/18 03:57 PM
02/27/18 03:57 PM
Joined: Jun 2011
Posts: 1,164
SE Ohio
MuzzleFlash40 Offline
MuzzleFlash40  Offline
Joined: Jun 2011
Posts: 1,164
SE Ohio
Originally Posted By: wemay


Great taste in vehicles btw wink


I'll have to agree! lol,

No synthetic is not required, her Santa Fe will be on Dealer provided Cam2 syn-blend until 100k when their oil change club runs out.

My Sonata after this oil change will be on Castrol Syntec since I got it on sale off Amazon for a while. Both 5w30.


18 Sonata SEL 2.4-8k
HK Syn 5w30 & OEM
16 Santa Fe Sport AWD 2.4-63k
Cam2 SynBlend 5w30 & OEM
09 Silverado LT 4x4 4.8-101k
Castrol GTX HM 5w30 & Fram



Re: gdi and conventional oil [Re: ernied] #4679783
02/27/18 04:06 PM
02/27/18 04:06 PM
Joined: Dec 2017
Posts: 1,037
US
JLTD Offline
JLTD  Offline
Joined: Dec 2017
Posts: 1,037
US
Synthetic not required and set your interval per a UOA.


I'm a thickie; but a 20 has its place.

I use AMSOIL™

Hers: 2008 Jeep Liberty 138k, SS 5w30/Amsoil

His: 2015 4Runner 41k, OE 5w20/Wix

Re: gdi and conventional oil [Re: ernied] #4679963
02/27/18 08:45 PM
02/27/18 08:45 PM
Joined: Apr 2004
Posts: 5,208
Texas
JustinH Offline
JustinH  Offline
Joined: Apr 2004
Posts: 5,208
Texas
I use bargain full synthetic oil and hyundai filters on my sonata.

At 3750 mile intervals smile


'11 Hyundai Sonata GLS
'11 Scion XB
Re: gdi and conventional oil [Re: ernied] #4680088
02/27/18 10:40 PM
02/27/18 10:40 PM
Joined: Jan 2009
Posts: 13,837
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,837
Illinois
Originally Posted By: ernied
do all gdi engines require synthetic oils?
I use mobil 1 5/20 in both my 2.4 motors but am thinking of changing
to conventional because the oil change reminder will say
change at 5000 miles or six months
and I only have about 2000 on the vehicles seems like a waste of oil
I don" mind spending the money for syn but don't like to waste it either.
at times I use synpower too.


Ignore the OLM.


2007 Ford Fusion 232,000 miles
M1 0-20 EP
2017 Ford Fusion 55K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and MC LV
M1 10-30 in all OPE
MC filters


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