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#4803333 - 07/02/18 05:03 PM Mobil1 0W-40 6,610mi, 2010 Civic Si 94k
ScottyB Offline


Registered: 04/25/08
Posts: 15
Loc: Augusta GA
I bought this Si used on Labor Day 2017, and this run of 0W-40 is the first change of oil I've personally put through it. I chose to stick with the recommended interval of the onboard maintenance minder as a baseline for my first analysis. The car's driveline is entirely stock, but I did replace the air filter with an OEM Honda filter at the start of this oil change. The oil filter used was also an OEM Honda A01 unit.

This car is spec'd for 5W-30, but given my aggressive driving habits, hot climate (east GA), and a positive Civic Si OW-40 UOA from user JoeFromPA, I felt the added thickness, good $$ value and stout TBN of this oil as essentially a "beefy 30 weight" would be the right call.

Additionally, Honda's higher performance Japanese-market Type-R variant of this chassis, the "FD2", calls for a 5W-40 weight in the factory service manual. Given that the engine in that car is essentially identical internally to mine, aside from a slightly hotter cam and the deletion of balance shafts in the sump, supported my thought that the engine would be happy with a 40 weight oil.



As you can imagine, I'm quite pleased. It looks like the 0W-40 dipped down right into that middle/high 30 weight range at the end. I take care to drive the car gently until its fully warm, but otherwise it sees normal shifts in the 4-5k RPM range and sees the 8,200 RPM redline multiple times a trip, as it should. I bought the car as a practical daily driver, so it sees all the rigors of traffic, long interstate trips, extended idling with the A/C cranked up, and lots of engine shutdowns/cranks when running errands.

Given the results I don't feel inclined to change viscosities. I got a great deal on Pennzoil Euro 0W-40 from wally world so that is currently in the sump with another A01 oil filter. My plan is to take that oil out to 8-9k miles and see what the UOA turns up. I have a feeling I'll settle in somewhere around 10k mile change intervals by the time I find the sweet spot with these 0W-40s.

Comments welcome. Thanks!



Edited by ScottyB (07/02/18 05:05 PM)

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#4803339 - 07/02/18 05:14 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: ScottyB]
camryrolla Offline


Registered: 07/16/14
Posts: 52
Loc: Louisiana
with a TBN of over six, I would easily go 10K OCI.
_________________________
'11 Camry 2.5L 150K mi
'07 Corolla 1.8L 220K mi
Always Fram XG filter.

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#4803349 - 07/02/18 05:26 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: ScottyB]
OVERKILL Online   content


Registered: 04/28/08
Posts: 36599
Loc: Ontario, Canada
Looks like the oil held up extremely well and there's not a lot of fuel in the oil, which is a big plus thumbsup
_________________________
2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT

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#4803354 - 07/02/18 05:30 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: ScottyB]
Pajero Offline


Registered: 05/05/12
Posts: 948
Loc: Rio Rancho, NM
Nice car and great UOA!



Respectfully,

Pajero!
_________________________
Always remember "Planned obsolescence."

1994 Montero SR 3.5 DOHC, 133,xxx
Fram Ultra/ Snorkel with Pre-filter
K-9-Co-pilot

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#4803356 - 07/02/18 05:30 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: camryrolla]
ScottyB Offline


Registered: 04/25/08
Posts: 15
Loc: Augusta GA
Originally Posted By: camryrolla
with a TBN of over six, I would easily go 10K OCI.


Agreed the TBN is strong - do you think its wise to jump right up to a 10k OCI next time around or do a "middle ground" of maybe 8 or 9k miles?

To be honest, the oil filter is such a PITA to reach I'd probably be happy to just let it ride to 10k!

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#4803357 - 07/02/18 05:31 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: ScottyB]
SR5 Online   content


Registered: 07/07/15
Posts: 4516
Loc: Down Under
Nice low iron wear, ample TBN left, this is an easy 10K mile oil for this car.
_________________________
Penrite Vantage 10W40 SN & A3/B4 + Wesfil-Cooper Z154

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#4803367 - 07/02/18 05:37 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: ScottyB]
JLTD Offline


Registered: 12/15/17
Posts: 831
Loc: US
thumbsup In all respects - thanks for the report
_________________________
Hers: 2008 Jeep Liberty 135k, AMSOIL SS 5w30/same

His: 2015 4Runner SR5 1GR-FE 39k, AMSOIL OE 5w20/Wix

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#4803381 - 07/02/18 05:48 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: ScottyB]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2634
Loc: MN
You're certainly using a great oil, yet you're using the Honda OEM oil filter, which doesn't filter as well & isn't built as well as a Fram Ultra XG7317.

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#4803384 - 07/02/18 05:52 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: ScottyB]
deven Offline


Registered: 06/28/05
Posts: 3428
Loc: Massachusetts
So much for M1 causing excessive iron wear!
_________________________
Proud user of ROYAL PURPLE products!

2016 Acura RLX Sports Hybrid(Royal Purple HPS 5w30 + M1-110 oil filter)

KEEP IT SIMPLE STUPID. IT'S ONLY OIL

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#4803391 - 07/02/18 06:00 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: ScottyB]
parshisa Offline


Registered: 05/21/17
Posts: 587
Loc: TX
1.5qt of make up oil probably helped a good but with TBN retention
_________________________
2016 Honda Pilot 3.5V6 PP 0W20
2017 Honda Civic 1.5T Amsoil SS 5W30

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#4803420 - 07/02/18 06:41 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: parshisa]
bbhero Offline


Registered: 03/20/15
Posts: 4724
Loc: Virginia
^^^^^^^

Great point parshisa.

This report does look like a winner at the end of the day.
_________________________
Nissan Altima 3.5 Coupe Formula Shell 5w30 Champion 7317
"Treat your family like your friends and treat your friends like your family."

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#4803422 - 07/02/18 06:43 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: ScottyB]
simple_gifts Offline


Registered: 07/26/04
Posts: 11988
Loc: Middlesex County CT
Nice shrubs.
_________________________
2004 Prius; 97K ML Syn 5W-30
2007 Yaris 71K 0w-40 Castrol
2006 B2300;130K;ALM


Was driving an ox cart; Now on the USS Enterprise

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#4803430 - 07/02/18 06:50 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: ScottyB]
rollinpete Offline


Registered: 03/20/17
Posts: 498
Loc: West Ma.
Nice report, thumbsup
Looking forward to your next UOA.
_________________________
Pete.
97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive183k miles
Last Change;
Penn. Plat. HM. 5w30
Fram xg8a, Fram CA8141

I like my oil (slippery).


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#4803446 - 07/02/18 07:10 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: oil_film_movies]
ScottyB Offline


Registered: 04/25/08
Posts: 15
Loc: Augusta GA
Originally Posted By: oil_film_movies
You're certainly using a great oil, yet you're using the Honda OEM oil filter, which doesn't filter as well & isn't built as well as a Fram Ultra XG7317.


I'm new to this car so I went with a filter that felt like a safe bet which was OEM. I bought a 6-pack if them, do when I run out I'll consider the Fram. Until them I'm not losing sleep over the performance of the Honda A01.

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#4803456 - 07/02/18 07:21 PM Re: Mobil1 0W-40 6,610mi, 2010 Civic Si 94k [Re: oil_film_movies]
parshisa Offline


Registered: 05/21/17
Posts: 587
Loc: TX
is there a proof that XG7317 is superior to Honda A01 by Filtech? not being a wise guy but really curious since I need to make a filter choice for next OCI. thanks


Edited by wwillson (07/03/18 06:30 AM)
Edit Reason: censor bypass

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