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Dead Horse Warning: What's with the short OCI's? #4533677
10/04/17 10:54 AM
10/04/17 10:54 AM
Joined: Aug 2011
Posts: 102
Northern VA
homeyclaus Offline OP
homeyclaus  Offline OP
Joined: Aug 2011
Posts: 102
Northern VA
So let me start another thread on this. It's now 2017. Newer cars have oil life monitors. Yet I see late model cars in the UOA section with 5000 mile or less OCIs, with great results and lots of life left on the oil. Why? I mean it's better than 3000 mile OCI's, since we're not in the 70's anymore, but 7500 mi OCIs have been the norm for Japanese designs for over 15 years now.


2013 Toyota Tundra CM 5.7L TRD (M1 0w20/PUP0w40euro, WIX/CQ filter)
2010 Mercedes E550 4Matic (PP 0W40 Euro, Mann)
Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533680
10/04/17 10:56 AM
10/04/17 10:56 AM
Joined: Oct 2002
Posts: 36,420
Great Lakes
Quattro Pete Offline
Quattro Pete  Offline
Joined: Oct 2002
Posts: 36,420
Great Lakes
Severe service?


'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (FF)
Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533681
10/04/17 11:00 AM
10/04/17 11:00 AM
Joined: Feb 2011
Posts: 6,725
Hudson, NH
LeakySeals Offline
LeakySeals  Offline
Joined: Feb 2011
Posts: 6,725
Hudson, NH
Those that find it necessary to perform a UOA on a late model car are likely change their oil prematurely. Which is what you're seeing.


06 Escalade 6.0L LQ9 AWD 165k M1 5w30
03 Maxima 3.5L POS 152k ST HM 10w30
Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533682
10/04/17 11:00 AM
10/04/17 11:00 AM
Joined: Apr 2012
Posts: 9,568
Kendall, FL
wemay Offline
wemay  Offline
Joined: Apr 2012
Posts: 9,568
Kendall, FL
Direct Injection
Direct Injection Turbo

may cause...

Fuel Dilution (shearing)
Rapid oil breakdown


'18 Sportage LX AWD Pennzoil Platinum 5w20
'13 Santa Fe Sport 2.0T Castrol GTX Magnatec 5w30
Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533684
10/04/17 11:01 AM
10/04/17 11:01 AM
Joined: Dec 2016
Posts: 6,461
Waco, TX
Linctex Online content
Linctex  Online Content
Joined: Dec 2016
Posts: 6,461
Waco, TX
Obsessive Compulsive Disorder....

Like the people that can't touch a door handle without a Kleenex


"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: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533686
10/04/17 11:05 AM
10/04/17 11:05 AM
Joined: Mar 2014
Posts: 3,317
NJ
Leo99 Offline
Leo99  Offline
Joined: Mar 2014
Posts: 3,317
NJ
Like people that don't believe in lifetime fluids. They just don't believe oil can go 10,000 miles. They weren't raised that way.


Without data you're just another person with an opinion. W. E. Deming

2003 Corolla 250,000 miles
2004 Rav4 359,000 miles
2015 Camry 59,000 miles
Re: Dead Horse Warning: What's with the short OCI's? [Re: wemay] #4533692
10/04/17 11:10 AM
10/04/17 11:10 AM
Joined: Apr 2010
Posts: 4,465
Storrs, Connecticut
jeepman3071 Offline
jeepman3071  Offline
Joined: Apr 2010
Posts: 4,465
Storrs, Connecticut
Originally Posted By: wemay
Direct Injection
Direct Injection Turbo

may cause...

Fuel Dilution (shearing)
Rapid oil breakdown


This and engines are getting more expensive.

My GF's BMW specifies 10-15k mile oil changes. Swapping in an engine if hers fails would cost north of $8,000. Pretty much just scrap the car at that point since it is a 2006. It is easy to think 5,000 miles would be safer, even though in reality the oil is probably just fine for 10,000 miles.

For OCD people, it is easy to get worried about having the best oil in the engine possible when engines are so complicated and expensive. These aren't 350 Chevys anymore where you can buy a crate engine for $2000 and swap it in a weekend.


2000 Jeep Cherokee 4.0L (181k) - Pennzoil 10w30, Napa Gold 1516, Magnefine trans filter
2009 BMW 328i (34k) - Castrol Edge Euro 0w40, MANN HU816X
Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533696
10/04/17 11:13 AM
10/04/17 11:13 AM
Joined: May 2009
Posts: 12,250
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,250
N.H, U.S.A.
My rogue OM says 6 Mo or 6 K mi or risk no warranty if engine lunches and oil is toast.
Oh, wait! Nissan doesn't want myservice mgr to make a warraty claim so - forget what I just said.


2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533697
10/04/17 11:14 AM
10/04/17 11:14 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
I can only speak for myself. When I see fuel dilution and viscosity out of grade, I will happily change my oil.

Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533704
10/04/17 11:17 AM
10/04/17 11:17 AM
Joined: May 2016
Posts: 718
Canada
i_hate_autofraud Offline
i_hate_autofraud  Offline
Joined: May 2016
Posts: 718
Canada


We've been brainwashed with scare tactics by oil companies for generations!

The biggest risk to late model engines is not the oil OCI, but owners who don't lift the hood and check the oil level
and run engines till the oil light comes on with 1 qt in the pan then complain their engine is blown! Jeez!

Any of the thousands of tests show you have to run way over a long OCI to get to a TBN of 1.0 or less!

I know if I go on a all day 500 mile hiway run 60 MPH or more, I'll bring some oil to top up, I'll be about a 1/2 qrt low!

Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533706
10/04/17 11:20 AM
10/04/17 11:20 AM
Joined: Jun 2015
Posts: 4,281
New England
Virtus_Probi Offline
Virtus_Probi  Offline
Joined: Jun 2015
Posts: 4,281
New England
My 2014 Subaru specified 7500 OCIs for non-severe service, but the next model year (2015) it was changed to 6000 miles without any obvious changes having been made to the engine. This may have been a blanket change due to ongoing oil consumption problems with other Subaru engines, but I also wondered if the DITs were just chewing up oil faster than expected. No OLM in my vehicle, either.
I stick with 5000 mile OCIs because it's easy to remember and I like having just a bit more margin.


2014 Forester XT, 90000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter
Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533712
10/04/17 11:24 AM
10/04/17 11:24 AM
Joined: Jun 2012
Posts: 1,722
USA
oldhp Offline
oldhp  Offline
Joined: Jun 2012
Posts: 1,722
USA
The "oil" can go 10K miles, but it gets full of crud. That's why people change it out. My 2012 Equinox 2.4 gets the oil changed every 2000 miles or 3 months. The really black, doesn't look or smell like oil stuff that comes out needs changed. I don't need to see a UOA to tell me what I hear, see and smell. At close to the 2K/3 mo the VVT valve train starts to get noticeably louder. This car sees 15 to 30 starts a day, at least. It's Direct Injection. GM backed the OCI up because of timing chain failures, because of dirty diluted oil. That's my reasoning for "this" car.....and a good friend tech who works at a local Chevy dealership agrees. Cheers2

Last edited by oldhp; 10/04/17 11:25 AM. Reason: add'n

2018 RAM 1500 3.6/8 speed.
2017 Jeep Sahara Unlimited 3.6
"U kan't fixe it......if'n it ain't broke."
Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533718
10/04/17 11:26 AM
10/04/17 11:26 AM
Joined: May 2017
Posts: 50
Tennessee
OTCW Offline
OTCW  Offline
Joined: May 2017
Posts: 50
Tennessee
My 2017 Nissan specifies 5,000 miles or 6 months.


2017 Nissan Sentra 1.8L 11k miles
2004 Nissan Frontier 2.4 L 199k miles
2012 Yard Machines 21 in 140 cc
2001 Weedeater Featherlite Plus 21 cc
Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533725
10/04/17 11:30 AM
10/04/17 11:30 AM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
They're trying to avoid the formation of varnish.

Nobody wants stir-fry pan stains on the inside of their engine.

Re: Dead Horse Warning: What's with the short OCI's? [Re: homeyclaus] #4533738
10/04/17 11:39 AM
10/04/17 11:39 AM
Joined: Dec 2014
Posts: 1,263
California
Vuflanovsky Offline
Vuflanovsky  Offline
Joined: Dec 2014
Posts: 1,263
California
If you own one, I wouldn't recommend blind 10K mile OCIs with a GDI or TGDI as they may require a little more vigilance. I can see 5K mile OCIs as standard for these engines so "short OCIs" is a relative term and not an absolute one. It's definitely a dead horse response if someone just thinks of the oil and not the application when they recommend long OCIs.

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