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#4576068 - 11/16/17 01:09 PM Going back to 3000 miles???
Costas00 Offline


Registered: 03/13/17
Posts: 17
Loc: 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

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#4576071 - 11/16/17 01:15 PM Re: Going back to 3000 miles??? [Re: Costas00]
2015_PSD Offline


Registered: 09/26/10
Posts: 7234
Loc: 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 - M1 0W-40/OEM
2018 MB C300 2.0L - M1 0W-40/OEM
2015 F-250 6.7L PS Diesel - Delo 5W-40/CQ Blue
2014 Explorer 3.5L Limited - M1 AFE 0W-20/FU

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#4576075 - 11/16/17 01:15 PM Re: Going back to 3000 miles??? [Re: Costas00]
Alex_V Offline


Registered: 04/10/16
Posts: 1155
Loc: 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.

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#4576079 - 11/16/17 01:18 PM Re: Going back to 3000 miles??? [Re: Costas00]
PimTac Offline


Registered: 03/04/17
Posts: 4278
Loc: 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
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#4576080 - 11/16/17 01:18 PM Re: Going back to 3000 miles??? [Re: Costas00]
Nitronoise Offline


Registered: 03/24/10
Posts: 488
Loc: 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


Edited by Nitronoise (11/16/17 01:21 PM)
Edit Reason: spelling
_________________________
07 Ford Freestyle 135K
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#4576083 - 11/16/17 01:22 PM Re: Going back to 3000 miles??? [Re: Nitronoise]
SatinSilver Offline


Registered: 01/24/08
Posts: 10150
Loc: 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.

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#4576242 - 11/16/17 03:55 PM Re: Going back to 3000 miles??? [Re: Costas00]
dlundblad Offline


Registered: 09/30/13
Posts: 10026
Loc: 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 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4576245 - 11/16/17 04:00 PM Re: Going back to 3000 miles??? [Re: Costas00]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: 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."

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#4576308 - 11/16/17 04:56 PM Re: Going back to 3000 miles??? [Re: Costas00]
StevieC Offline


Registered: 08/21/08
Posts: 17116
Loc: 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
_________________________
'15 Dodge Journey - 90,000 KM's - SSO 5w20
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#4576422 - 11/16/17 07:02 PM Re: Going back to 3000 miles??? [Re: Costas00]
jakewells Offline


Registered: 12/28/12
Posts: 468
Loc: 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 3 on the tree.
Rotella 10W40 Fram TG30


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#4576700 - 11/17/17 05:37 AM Re: Going back to 3000 miles??? [Re: Costas00]
doolah02 Offline


Registered: 04/27/14
Posts: 151
Loc: FL USA
I change oil in my 2001 Sport Trac regardless of mileage, maybe an overkill
but it keeps my engine clean.

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#4576707 - 11/17/17 05:59 AM Re: Going back to 3000 miles??? [Re: dlundblad]
Gebo Offline


Registered: 09/18/02
Posts: 2089
Loc: 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.
_________________________
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#4576767 - 11/17/17 07:32 AM Re: Going back to 3000 miles??? [Re: 2015_PSD]
CajunNative Offline


Registered: 11/16/17
Posts: 12
Loc: 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!

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#4576917 - 11/17/17 09:48 AM Re: Going back to 3000 miles??? [Re: Costas00]
Ammofirst Offline


Registered: 06/22/17
Posts: 353
Loc: 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.

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#4576938 - 11/17/17 10:04 AM Re: Going back to 3000 miles??? [Re: Costas00]
bigj_16 Offline


Registered: 07/03/17
Posts: 1267
Loc: 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.


Edited by bigj_16 (11/17/17 10:11 AM)

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