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High Mileage Synthetic Oils in Newer Cars? #4502111
08/30/17 09:06 AM
08/30/17 09:06 AM
Joined: Apr 2005
Posts: 542
NE Ohio
knerml Offline OP
knerml  Offline OP
Joined: Apr 2005
Posts: 542
NE Ohio
Is there any reason not to use "High Mileage" type full synthetic oils (like Valvoline or M1) in newer cars?

I would think all engines, regardless of the mileage, would benefit from the improved seal conditioning, viscosity stability and cleaning properties.


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: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502134
08/30/17 09:31 AM
08/30/17 09:31 AM
Joined: Jun 2002
Posts: 19,234
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,234
Iowegia - USA
There is no reason one cannot use HM oils in new engines.

However, the HM oils may not give you the fractional increase in fuel mileage since HM oils may not contain the same level of Friction Modification chemistry found in non-HM oils.

Last edited by MolaKule; 08/30/17 09:31 AM.

Reading is fundamental; understanding is not a given ability.
Re: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502139
08/30/17 09:35 AM
08/30/17 09:35 AM
Joined: Mar 2013
Posts: 4,761
The Midwest
skyactiv Online content
skyactiv  Online Content
Joined: Mar 2013
Posts: 4,761
The Midwest
Don't believe everything you read, but.....?


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Re: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502142
08/30/17 09:37 AM
08/30/17 09:37 AM
Joined: Jan 2009
Posts: 13,836
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,836
Illinois
I wouldn't do it. I still use 0-20AFE in my 10 year old Fusion. Call Mobil tech and get their advise. 1-800-ASK-Mobil.

Last edited by tig1; 08/30/17 09:37 AM.

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

Re: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502158
08/30/17 09:54 AM
08/30/17 09:54 AM
Joined: Apr 2005
Posts: 542
NE Ohio
knerml Offline OP
knerml  Offline OP
Joined: Apr 2005
Posts: 542
NE Ohio
Thanks


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: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502162
08/30/17 10:01 AM
08/30/17 10:01 AM
Joined: Jun 2002
Posts: 19,234
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,234
Iowegia - USA
Goss is a mechanic, not an oil chemist.

He should use the term, "Seal Conditioning," which does more than just swell seals.

Also realize, HM oils only contain a very small fractional increase in cleaners and seal conditioners, so the oil does not over swell the seals.

Goss did not present any evidence that HM oils damage seals over the long haul.




Last edited by MolaKule; 08/30/17 10:04 AM.

Reading is fundamental; understanding is not a given ability.
Re: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502167
08/30/17 10:07 AM
08/30/17 10:07 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 am not saying that Goss guy is wrong or right. But...does he have any data or testing to back up what he says? When someone makes a broad statement like that(i.e. use an HM oil and you will have to use it all the time) and no data to back it up... Is there even one test? It kind of reminds me of using oil and stretching the engine out.

Last edited by bigj_16; 08/30/17 10:08 AM.
Re: High Mileage Synthetic Oils in Newer Cars? [Re: bigj_16] #4502174
08/30/17 10:17 AM
08/30/17 10:17 AM
Joined: Jun 2002
Posts: 19,234
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,234
Iowegia - USA
Originally Posted By: bigj_16
I am not saying that Goss guy is wrong or right. But...does he have any data or testing to back up what he says? When someone makes a broad statement like that(i.e. use an HM oil and you will have to use it all the time) and no data to back it up... Is there even one test? It kind of reminds me of using oil and stretching the engine out.


It's a Goss, "Hypothesis."


Reading is fundamental; understanding is not a given ability.
Re: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502175
08/30/17 10:18 AM
08/30/17 10:18 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
M1 HM 10W-30 is a pretty stout oil, for a Run Of The Mill Walmart Jug Oil (ROTMWJO) . Seal conditioning etc., aside, it looks like it would make a good replacement for hard use when a 5 or 10W-30 is spec'ed.

Re: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502219
08/30/17 11:20 AM
08/30/17 11:20 AM
Joined: Oct 2004
Posts: 3,077
Midwest, Illinois
beanoil Offline
beanoil  Offline
Joined: Oct 2004
Posts: 3,077
Midwest, Illinois
An HM oil is fine anytime.
Most blenders will recommend for 75,000 and above, but no time/space continuum has been interrupted or altered by running HM's at 74,999 or less.
Maxlife is one of the few that actually does what it says it will.


beanoil: Tough under heat, real dirty afterwards.
Re: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502240
08/30/17 11:56 AM
08/30/17 11:56 AM
Joined: May 2015
Posts: 186
East Coast
Fasttimez Offline
Fasttimez  Offline
Joined: May 2015
Posts: 186
East Coast
Most HM oils do have a stouter add pack & are usually higher in VIS for their grade. I'm guessing the reason most don't get the GF-5 certification is because they can't pass the fuel economy part because it's a more robust, less thin oil.

Re: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502249
08/30/17 12:11 PM
08/30/17 12:11 PM
Joined: Sep 2010
Posts: 7,485
S California
OneEyeJack Offline
OneEyeJack  Offline
Joined: Sep 2010
Posts: 7,485
S California
Goss reads scripts supplied by sponsors. There's nothing at all wrong with what he says but his audience is not BITOG members.

He's like the doctor that says the operation we are about to perform on you is routine. He smiles and leaves the room.

Then, behind the scenes, there's a doctor that spent 10-15 years in higher education, internship, residency, state board exams, yearly continuing education credits, hospital certification with peer review of his every move, and a support team along with a specialized hospital facility that actually does the "routine operation".

Re: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502344
08/30/17 02:19 PM
08/30/17 02:19 PM
Joined: Aug 2017
Posts: 166
South Texas
Insertcoolname Offline
Insertcoolname  Offline
Joined: Aug 2017
Posts: 166
South Texas
Hi. I can't help but notice Valvoline max life high mileage is gf-5 certified (current) a1/a5 API SN AND resource conserving in 5w-20, 5w-30 and 10w-30. This link I got off their website shows what weights meet what specs. Also meets the current Chrysler 6395

https://sharena21.springcm.com/Public/Do...10-ac162d889bd3

The new Quaker state high mileage is also API SN and GF-5 certified in 5w-20, 5w-30, and 10w-30
http://www.quakerstate.com/en_us/products/motor-oil/quaker-state-defy-high-mileage.html

As I recall QS Defy which recently went off the shelves was SL rated as was the old M1 high mileage. I think oil companies did this to get their products in newer cars which are now high mileage but still meet all new requirements.
One of the above mentioned companies claims you can use their formula to address symptoms of high mileage wear before they begin. Can't find the page anymore. But as they are both SN GF-5 rated I'm sure they are just fine. Just my opinion.
My car asks for API SL. If you have a new car requiring API SN or GF-5 there are a few Hi Mi options that still meet your modern requirements.


04 Camry 2az-fe 2.4L 204k QS HiMi 10w30
Supertech white can filter
Re: High Mileage Synthetic Oils in Newer Cars? [Re: MolaKule] #4502402
08/30/17 03:01 PM
08/30/17 03:01 PM
Joined: Dec 2009
Posts: 25,355
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline
Joined: Dec 2009
Posts: 25,355
Regina, Saskatchewan, Canada
Originally Posted By: MolaKule
Goss is a mechanic, not an oil chemist.

I didn't even watch the video, considering I saw who it was. He's not that good of a mechanic, even.

Seeing 10w-40 versus 5w-20 on his little shelf didn't impress me, either. I'm also sure he doesn't know that there are ILSAC rated high mileage oils, too. Considering that MaxLife is dexos1 where appropriate, I'm sure GM isn't worried, either.

How much time did he spend shilling the collection of additives on the right side of the screen, or was that just there for the setting? whistle


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: High Mileage Synthetic Oils in Newer Cars? [Re: knerml] #4502618
08/30/17 06:44 PM
08/30/17 06:44 PM
Joined: Jan 2009
Posts: 13,836
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,836
Illinois
How do we really know Goss isn't a quality mechanic?


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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