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#4600921 - 12/11/17 06:00 PM Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l
RamFan Offline


Registered: 05/09/10
Posts: 1972
Loc: Illinois, U.S.A
Much improved over the previous UOA. I'm pretty sure my suspicion that high fuel in the previous UOA was caused by winter driving is correct. I do think that dropping the OCI down to 8k miles is probably optimal, but, going to 10k miles certainly won't hurt the engine. With that being said, I don't trust the OLM system. Once again, this sample was taken with an OLM reading either 50 or 60% remaining. I did contact Mazda to find out about their algorithm and they actually seem to be intrigued by the lack of depreciation on my OLM so that's something we're now digging into.

OCI history is as follows:

0 - 1,169 - Factory Fill
1,169 - 10,120 - Mag1 0w20
10,120 - 19,949 - Mobil Super Syn 0w20
19,949 - 30,031 - Mobil 1 EP 0w20
30,031 - Present - SynPower 0w20




Edited by RamFan (12/11/17 06:04 PM)
_________________________
06 Monte Carlo LT
+3.9l V6 - 187k - Defy/Motorcraft 10w30 - EcoGard Synthetic - OLM
16.5 CX-5 Touring
+2.5l I4 - 44k - SynPower 0w20 - PureOne - 8.5k/1yr

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#4600935 - 12/11/17 06:11 PM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: RamFan]
tig1 Offline


Registered: 01/03/09
Posts: 13655
Loc: Illinois
Easily a 10K OCI oil.
_________________________
2007 Ford Fusion 227,000 miles
M1 0-20 EP
2017 Ford Fusion 49K
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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#4600943 - 12/11/17 06:20 PM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: RamFan]
LotI Offline


Registered: 01/01/13
Posts: 1265
Loc: America's Dairyland
Im curious about their math too. I changed my oil at 10k miles in my M6 and at 13k Im still showing 7k miles remaining. Their max is 7,500 miles and Im at 3k with just a 500 mile drop?!

My thought with the SkyActiv is to keep the OCI at 5k winter and 10k summer due to fuel dilution.
_________________________
03 Honda Interceptor
11 Kawasaki KLR 650
12 Ford E450
17 VW GTI
[IMG]http://badges.fuelly.com/images/sig-us/803455.png[/IMG]

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#4600979 - 12/11/17 07:10 PM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: RamFan]
Danh Offline


Registered: 10/16/10
Posts: 1744
Loc: .
This does provide a good data point about the harmfulness of fuel dilution. Your previous UOA had a boatload of fuel with 100C viscosity of 5.55 cSt and certainly a lot more than Blackstone says; the current one looks a lot better on this front. But even with the extra dilution wear metals weren't that different, especially considering break-in metals were still washing out.

Maybe fuel dilution isn't something we should obsess over and just maybe the OEMs know what they're doing.

Nah...

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#4601007 - 12/11/17 07:42 PM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: RamFan]
Artem Offline


Registered: 10/30/10
Posts: 5109
Loc: Florida
What's the driving conditions? 50-60% oil life left after 10,000 miles is ridiculous.

My 2014 Mazda 3 drops to 40-50% after 4K miles. Most city at 70/30 but we usually avoid bumper to bumper rush hour traffic and cruise at 49mph a lot around town.

I wonder what would happen if you actually ran it until the maintenance light came on after... 20,000 miles. I think this oil would be toast and the report wouldn't look so good. duh
_________________________
2014 Mazda 3 Hatch 2.0L & 6spd - Idemitsu 0w20 Synthetic @ $0.75 a quart.

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#4601177 - 12/12/17 12:10 AM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: Danh]
bbhero Offline


Registered: 03/20/15
Posts: 4611
Loc: Virginia
Ask Ford... Why they had to go back up to 5w30 in some of their Ecoboost motors. Fuel dilution in the crankcase.


Edited by bbhero (12/12/17 12:11 AM)
_________________________
Nissan Altima 3.5 Coupe Valvoline Advanced Full Synthetic 5w30 Federated Auto 4612ex
"Treat your family like your friends and treat your friends like your family."

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#4601236 - 12/12/17 05:23 AM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: RamFan]
KL31 Offline


Registered: 06/03/16
Posts: 549
Loc: South OZ
Looks like less fuel dilution is seeing less wear metals though. That second OCI looks so low in viscosity. Low even for a 0W16.
_________________________
95 MX-3 2.5L|Shell Helix Ultra 5W40|Wix 51356
04 Focus 1.8L|Wesfil Cooper WZ63|Valvoline MST 5W30
05 Kluger 3.3L|Wesfil Cooper WZ418|Magnatec 10W30 Semi Syn

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#4601380 - 12/12/17 09:07 AM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: RamFan]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2731
Loc: Wet side WA
A new CX-5 and you've already voided your warranty!
_________________________
2004 Toyota Corolla 121525
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74016
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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#4601398 - 12/12/17 09:14 AM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: JohnnyJohnson]
kschachn Offline


Registered: 12/26/05
Posts: 9369
Loc: Upper Midwest
Originally Posted By: JohnnyJohnson
A new CX-5 and you've already voided your warranty!

Really? How? Can you post the wording from his owner's manual where it states that anything he did here violates the warranty?
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

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#4601400 - 12/12/17 09:16 AM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: JohnnyJohnson]
PimTac Offline


Registered: 03/04/17
Posts: 4213
Loc: Soviet State of Washington
Originally Posted By: JohnnyJohnson
A new CX-5 and you've already voided your warranty!




Why is that?
_________________________
2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter


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#4601413 - 12/12/17 09:24 AM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: PimTac]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2731
Loc: Wet side WA
Originally Posted By: PimTac
Originally Posted By: JohnnyJohnson
A new CX-5 and you've already voided your warranty!




Why is that?


He went over 10K miles

http://www.serramazda.com/blog/often-need-change-oil-2016-mazda-cx-5/
_________________________
2004 Toyota Corolla 121525
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74016
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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#4601427 - 12/12/17 09:33 AM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: RamFan]
PimTac Offline


Registered: 03/04/17
Posts: 4213
Loc: Soviet State of Washington
That is a dealer link. The Mazda OLM could push the oci over 10k. But I will agree in point that 10k is too long. The OP should try 7500 miles. He appears to be driving a lot so I assume this is highway miles for the most part.
_________________________
2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter


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#4601433 - 12/12/17 09:39 AM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: PimTac]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2731
Loc: Wet side WA
Originally Posted By: PimTac
That is a dealer link. The Mazda OLM could push the oci over 10k. But I will agree in point that 10k is too long. The OP should try 7500 miles. He appears to be driving a lot so I assume this is highway miles for the most part.


I totally agree on the 7.5K anything else would like put your warranty in question. They have an out they stated something about sever service but not exactly in those words. You just don't want to give any dealer an out on a warranty because 99.9% of the time their going to take the out.
_________________________
2004 Toyota Corolla 121525
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74016
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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#4601441 - 12/12/17 09:48 AM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: JohnnyJohnson]
kschachn Offline


Registered: 12/26/05
Posts: 9369
Loc: Upper Midwest
Originally Posted By: JohnnyJohnson
I totally agree on the 7.5K anything else would like put your warranty in question. They have an out they stated something about sever service but not exactly in those words. You just don't want to give any dealer an out on a warranty because 99.9% of the time their going to take the out.

Still though there is no language anywhere that ties it to the new vehicle warranty. People say that a lot on here yet there is nothing that shows it to be the case.
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

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#4601447 - 12/12/17 09:52 AM Re: Mobil EP 0w20 - 10,082 miles - CX5 w/ 2.5l [Re: RamFan]
PimTac Offline


Registered: 03/04/17
Posts: 4213
Loc: Soviet State of Washington
I believe the point is that the oil is more than capable of 10-15k change intervals but the engine needs a more conservative interval. With the op driving so much, increasing his intervals makes sense with a good oil but only as far as the engine will allow before fuel dilution becomes a problem.

On the other hand we have uoas posted here with high fuel dilution yet the wear numbers are excellent. Are modern oils capable of handling 3-5% fuel dilution without degradation? The answer is somewhere in the labs of big oil but the results are convincing here at BITOG.
_________________________
2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter


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