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Going back to 3000 miles??? #4576068
11/16/17 02:09 PM
11/16/17 02:09 PM
Joined: Mar 2017
Posts: 17
Greece
Costas00 Offline OP
Costas00  Offline OP
Joined: Mar 2017
Posts: 17
Greece
Hello
I currently own a 2013 Hyundai ix35 with the 1.6 GDi engine (same as the veloster). Until now I was changing the oil every 4500 miles as the dealer recommends with Fully synthetic Castrol edge 5w30. I have also tried Mobil 1 esp formula. Now I am comsidering to shorten my oci to maybe 3000-3500 miles because at almost 5000 miles the oil looks very dark and has a strong smell of gasoline in it. The car is driven 50/50 city/hwy. Some short trips during the week but also 100 mile trips on the weekend. At the end of the oci the engine starts to comsume some oil. Should I go 3000 miles or stay where I am? I need your advice.
Thank you!


2002 Honda jazz 1.3 Cvt eni i-sint 5w30
2013 Hyundai ix35 1.6 GDI castrol edge LL 5w30
1992 Mitsubishi L200 2.5D Petronas Mach5 15w40
Re: Going back to 3000 miles??? [Re: Costas00] #4576071
11/16/17 02:15 PM
11/16/17 02:15 PM
Joined: Sep 2010
Posts: 7,560
SE Texas
2015_PSD Offline
2015_PSD  Offline
Joined: Sep 2010
Posts: 7,560
SE Texas
Perform a UOA (Used Oil Analysis) on the oil. It is the only way to truly know the health of it. I have had oil samples that reeked of gasoline and expected the fuel dilution levels to be high and they were normal. Senses can be misleading--analysis tests are data driven. There are several UOA labs you can use--Blackstone is a site sponsor, but there is also Polaris and Wearcheck to name a couple of others.


2018 MB AMG GLC43 3.0L Coupe - Castrol 0W-40/Purflux
2018 MB C300 2.0L - M1 0W-40/OEM
2015 F-250 6.7L PS Diesel - Delo 15W-40/CQ Blue
2014 Explorer 3.5L Limited - M1 AFE 0W-20/FU
Re: Going back to 3000 miles??? [Re: Costas00] #4576075
11/16/17 02:15 PM
11/16/17 02:15 PM
Joined: Apr 2016
Posts: 1,185
Campbellsville, KY
Alex_V Offline
Alex_V  Offline
Joined: Apr 2016
Posts: 1,185
Campbellsville, KY
Being dark by the end of the OCI isn't something to worry about - dark by halfway through, with less than 20K miles total? Maybe, depends on the engine and driving environment.

On a DI engine I wouldn't pass judgement on shortening my OCI due to fuel until I did a UOA.


I like Chevy and Valvoline.

'13 Cruze, 1.4T, 113K
'85 GMC C3500, 454, 130K
'82 Mercedes 300CD, OM617 turbo, 169K
'67 Suburban, 350, 331K
Re: Going back to 3000 miles??? [Re: Costas00] #4576079
11/16/17 02:18 PM
11/16/17 02:18 PM
Joined: Mar 2017
Posts: 5,446
Soviet State of Washington
PimTac Offline
PimTac  Offline
Joined: Mar 2017
Posts: 5,446
Soviet State of Washington
Polaris uses gas chromatography to measure fuel % in the oil which is considered the more accurate way to test for that. While Blackstone is a site sponsor, for your Hyundai I think the Polaris test will be better.


2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter

Re: Going back to 3000 miles??? [Re: Costas00] #4576080
11/16/17 02:18 PM
11/16/17 02:18 PM
Joined: Mar 2010
Posts: 493
Chicago Suburbs
Nitronoise Offline
Nitronoise  Offline
Joined: Mar 2010
Posts: 493
Chicago Suburbs
i would suggest pulling a sample and having a lab run a UOA before you spend bucks on oil that is still serviceable
As for the gasoline smell the UOA can confirm fuel dilution
then you can find any problems and fix them

Last edited by Nitronoise; 11/16/17 02:21 PM. Reason: spelling

07 Ford Freestyle 135K
04 Hyundai Sonata 280K
03 Hyundai Santa Fe 165K
02 Ford Tarus 98K
00 Buick Regal SC 135K
95 Goldwing 28K

Re: Going back to 3000 miles??? [Re: Nitronoise] #4576083
11/16/17 02:22 PM
11/16/17 02:22 PM
Joined: Jan 2008
Posts: 10,679
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,679
OH
After 10k miles on the Camry I noticed the oil darken a bit. Could just be the reported less efficient oem filter causing the oil to darken. But did a UOA which came back with excellent results. Only 5 ppm Iron reading.

Re: Going back to 3000 miles??? [Re: Costas00] #4576242
11/16/17 04:55 PM
11/16/17 04:55 PM
Joined: Sep 2013
Posts: 10,451
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,451
Indiana
Isn't 3.5k Hyundai's severe service interval?

No need to send in an oil sample in my opinion.


03 Jeep WJ 4.0 200k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 149k Rotella T5 10w30 Supertech ST3980

Re: Going back to 3000 miles??? [Re: Costas00] #4576245
11/16/17 05:00 PM
11/16/17 05:00 PM
Joined: Dec 2016
Posts: 6,232
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,232
Waco, TX
Originally Posted By: Costas00
... because at almost 5000 miles the oil looks very dark and has a strong smell of gasoline in it.


Try not to get fooled - - your eyes and nose are not as good as a real oil analysis.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Going back to 3000 miles??? [Re: Costas00] #4576308
11/16/17 05:56 PM
11/16/17 05:56 PM
Joined: Aug 2008
Posts: 18,541
Ontario, Canada
StevieC Offline
StevieC  Offline
Joined: Aug 2008
Posts: 18,541
Ontario, Canada
The oil in my Journey smells like Gasoline at 10,000km (6,000 miles) and it's quite dark but the UOA's say it's just fine. A UOA is the only way to really tell.

My Hyundai in my signature had 300,000 miles (535,000km) when it died and was using no oil. I had to change its oil at a very low interval because it was really hard on the oil and yet it never got dark or smelled of gasoline. I found out through a UOA. wink


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Going back to 3000 miles??? [Re: Costas00] #4576422
11/16/17 08:02 PM
11/16/17 08:02 PM
Joined: Dec 2012
Posts: 556
Cave City KY
jakewells Offline
jakewells  Offline
Joined: Dec 2012
Posts: 556
Cave City KY
i change the oil and filter in both of my trucks every 3,000 because of stop and go traffic and hauling heavy loads in dusty, dirty, and extreme environments in severe heat or cold.
my little car just being a commuter gets the oil changed every 8,000 weather it needs it or not.


1994 Ford F150 302 4R70
Chevron Delo SAE 30 CF/SL Fram XG8A

1978 Chevy Nova 250 I6 Borg Warner T5
Rotella 10W40 Fram XG5

Re: Going back to 3000 miles??? [Re: Costas00] #4576700
11/17/17 06:37 AM
11/17/17 06:37 AM
Joined: Apr 2014
Posts: 154
FL USA
doolah02 Offline
doolah02  Offline
Joined: Apr 2014
Posts: 154
FL USA
I change oil in my 2001 Sport Trac regardless of mileage, maybe an overkill
but it keeps my engine clean.

Re: Going back to 3000 miles??? [Re: dlundblad] #4576707
11/17/17 06:59 AM
11/17/17 06:59 AM
Joined: Sep 2002
Posts: 2,275
VA
Gebo Offline
Gebo  Offline
Joined: Sep 2002
Posts: 2,275
VA
Originally Posted By: dlundblad
Isn't 3.5k Hyundai's severe service interval?

No need to send in an oil sample in my opinion.


I'm leaning with this. I'd do every 3K.


'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K
'07 Lex GX470 58K
Amsoil in all engines, transmissions and differentials

Re: Going back to 3000 miles??? [Re: 2015_PSD] #4576767
11/17/17 08:32 AM
11/17/17 08:32 AM
Joined: Nov 2017
Posts: 12
Russia
CajunNative Offline
CajunNative  Offline
Joined: Nov 2017
Posts: 12
Russia
Originally Posted By: 2015_PSD
Perform a UOA (Used Oil Analysis) on the oil. It is the only way to truly know the health of it. I have had oil samples that reeked of gasoline and expected the fuel dilution levels to be high and they were normal. Senses can be misleading--analysis tests are data driven. There are several UOA labs you can use--Blackstone is a site sponsor, but there is also Polaris and Wearcheck to name a couple of others.

OP, listen to this gentleman. He speaks from experience and is giving you some very good advice.


A fox is a wolf who sends flowers!
Re: Going back to 3000 miles??? [Re: Costas00] #4576917
11/17/17 10:48 AM
11/17/17 10:48 AM
Joined: Jun 2017
Posts: 388
Western usa
Ammofirst Offline
Ammofirst  Offline
Joined: Jun 2017
Posts: 388
Western usa
Why are fuel dumping engines flooding the market? The power & efficiency gains seem to be negated by the more frequent ociís and wasted fuel in the oil.

Re: Going back to 3000 miles??? [Re: Costas00] #4576938
11/17/17 11:04 AM
11/17/17 11:04 AM
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
bigj_16 Offline
bigj_16  Offline
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
The major focus of engine design/tuning, now, is to get the engine to pass the CAFE and EPA/CARB/SCAQMD tests. The engines are very specifically tuned for the cycles in these tests. What happens in the real world doesn't really matter. These engine guys are under the gun. What ever you think about the ethics of what VW did, it was done because they were trying to pass these tests.

Last edited by bigj_16; 11/17/17 11:11 AM.
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