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#4756799 - 05/14/18 10:41 AM 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy
CincyGTS Offline


Registered: 05/18/04
Posts: 99
Loc: Cincinnati, OH
2018 Honda Civic Si

Lab: Oil Analyzers Inc
Sample date: 4/19/2018
Analysis date: 4/25/2018

Miles on vehicle: 3,995 miles
Miles on oil: 2,989 miles

Oil: Mobil 1 Advanced Fuel Economy 0W-20
Oil Filter: Honda genuine oil filter (new on this OCI)
Air Filter: Honda genuine (from factory)
Fuel: Shell 93 octane


Note 1: I inadvertantly stuck a finger in this oil while taking the sample (doh!)
Note 2: First oil and oil filter change was roughly at 1,000 miles
Note 3: Car was allowed to idle during fill-ups and short stops during winter

Code:
Iron       11
Chromium   0
Nickel	   0
Aluminum   6
Copper     5
Lead       0
Tin        0
Cadmium    0
Silver     0
Vanadium   0
Silicon    39
Sodium     2
Potassium  5
Titanium   0
Molybdenum 121
Antimony   1
Manganese  1
Lithium    0
Boron      76
Magnesium  653
Calcium    1061
Barium     0
Phosphorus 606
Zinc       659

Fuel dilution: 3.6% (GC)
Soot: <0.1%
Water: <0.1% FTIR

[email protected]: 6.6
Base #: 4.85
Oxidation: 9 abs/cm
Nitration: 10 abs/0.1mm


Silicon and Fuel Dilution were flagged. I'm attributing the silicon to having stuck my finger in the sample jar, lol.

Overall I'm not concerned at this point. I'm using the same oil this interval but with a Napa Gold filter and will resample after 3k miles. The fuel dilution is my main source of focus.

The GDI and Fuel Dilution saga continues...

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#4756820 - 05/14/18 10:55 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: CincyGTS]
PimTac Offline


Registered: 03/04/17
Posts: 3851
Loc: Soviet State of Washington
High silicon is normal for new engines that are breaking in due to the sealants. Your report is excellent for wear metals. The FD is a concern. I assume this is the 1.5 TGDI engine?

What is your driving pattern? Most city or highway?
_________________________
2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter


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#4756829 - 05/14/18 11:03 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: PimTac]
CincyGTS Offline


Registered: 05/18/04
Posts: 99
Loc: Cincinnati, OH
Yep, this is the 1.5L turbo engine.

This was mainly short commutes to and from work (~17 minutes, 10 miles) with some longer drives (~50 minutes, 44 miles) once a week or so.

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#4756832 - 05/14/18 11:10 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: CincyGTS]
PimTac Offline


Registered: 03/04/17
Posts: 3851
Loc: Soviet State of Washington
Yep the short trips will do it. The interesting thing that has been noted here is that while fuel dilution is high the wear metals stay within normal limits.

Personally I would stick with 5k oil changes max and a d1G2 or SN+ oil. Some have gone to a 30wt and that would be your decision. Some if the newer 30s are more like heavy 20s. Valvoline Modern Engine is one but the cost may override that.
_________________________
2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter


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#4756835 - 05/14/18 11:12 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: CincyGTS]
parshisa Offline


Registered: 05/21/17
Posts: 455
Loc: TX
Very similar to mine 10K report with 5K on the oil.
I would imagine FD will greatly improve with warm season and engine broken in.
_________________________
2016 Honda Pilot 3.5V6 PP 0W20
2017 Honda Civic 1.5T Amsoil SS 5W30

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#4756842 - 05/14/18 11:16 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: CincyGTS]
PimTac Offline


Registered: 03/04/17
Posts: 3851
Loc: Soviet State of Washington
I think so as well.
_________________________
2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter


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#4756844 - 05/14/18 11:16 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: PimTac]
parshisa Offline


Registered: 05/21/17
Posts: 455
Loc: TX
VAS and PP in 5w30 are both below 10cst I think (or somewhere around there). Going up on the weight really makes no difference in terms of mpg and performance (in my experience). I haven't done the UOA yet to compare the wear numbers. Unfortunately, I don't think I'll get one anytime soon due to injury and inability to drive the car...
_________________________
2016 Honda Pilot 3.5V6 PP 0W20
2017 Honda Civic 1.5T Amsoil SS 5W30

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#4756849 - 05/14/18 11:18 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: CincyGTS]
OVERKILL Offline


Registered: 04/28/08
Posts: 36205
Loc: Ontario, Canada
I'm surprised at the low levels of break-in material!

Good looking report other than the fuel.
_________________________
2016 Durango Limited
2016 Grand Cherokee SRT

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#4756851 - 05/14/18 11:19 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: CincyGTS]
HemiHawk Offline


Registered: 03/09/16
Posts: 796
Loc: PA,US
Why idle during fillups/short stops? Does it get super cold where you live? I can only assume that extra idling isn't helping the fuel dilution.
_________________________
2016 Nissan Frontier Pro4x
2017 VW GTI sport
1997 Jeep GC 4.0

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#4756852 - 05/14/18 11:20 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: CincyGTS]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 11899
Loc: N.H, U.S.A.
How does the engine sound near then end of the OCI?
If it clattery I would substitute a litre or two of youe M1 10w30 with your AFE.
No use spinning a rod bearing over owner's manual fundamentalism. No need or want to go whle hog 30 grade in this Honda.

BTW does this engine have VVT along with vtec?
_________________________
2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter

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#4756853 - 05/14/18 11:20 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: CincyGTS]
parshisa Offline


Registered: 05/21/17
Posts: 455
Loc: TX

9.8 for the 5w30 weight. perfect for this application
_________________________
2016 Honda Pilot 3.5V6 PP 0W20
2017 Honda Civic 1.5T Amsoil SS 5W30

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#4756856 - 05/14/18 11:25 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: HemiHawk]
CincyGTS Offline


Registered: 05/18/04
Posts: 99
Loc: Cincinnati, OH
It was steadily in the 20s. Just a personal choice more or less

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#4756875 - 05/14/18 11:47 AM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: ARCOgraphite]
CincyGTS Offline


Registered: 05/18/04
Posts: 99
Loc: Cincinnati, OH
No difference in sound at the end of the OCI. Of course this was a shorter OCI...

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#4757005 - 05/14/18 01:49 PM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: ARCOgraphite]
tig1 Offline


Registered: 01/03/09
Posts: 13585
Loc: Illinois
Originally Posted By: ARCOgraphite
How does the engine sound near then end of the OCI?
If it clattery I would substitute a litre or two of youe M1 10w30 with your AFE.
No use spinning a rod bearing over owner's manual fundamentalism. No need or want to go whle hog 30 grade in this Honda.

BTW does this engine have VVT along with vtec?


Bad info and fear mongering.
_________________________
2007 Ford Fusion 226,000 miles
M1 0-20 EP
2017 Ford Fusion 47K
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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#4757045 - 05/14/18 02:35 PM Re: 2018 Honda Civic Si, Mobil 1 Advanced Fuel Economy [Re: CincyGTS]
PimTac Offline


Registered: 03/04/17
Posts: 3851
Loc: Soviet State of Washington
BTW does this engine have VVT along with vtec?


Same thing, is it not?
_________________________
2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter


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