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2008 Mazda 3 Sport 2.3, Castrol Syntec 5w30 #4771063
05/29/18 10:56 AM
05/29/18 10:56 AM
Joined: Apr 2009
Posts: 136
Seattle, WA
SnowmanCO Offline OP
SnowmanCO  Offline OP

Joined: Apr 2009
Posts: 136
Seattle, WA
Sampled using one of the labs Wix uses in Portland Oregon (ALS tribology). First ever UOA on this vehicle. Nothing appears abnormal here to me. It was run for almost exactly 6 months, which is the reason for the low mileage. It is worth noting that the oil run was a 10 year old API SM/CF oil that I had in my stock. Date code on one of the bottles read M082916A31SH. I recall purchasing it at Costco during a Mobil One supply problem. Costco normally sells Mobil, but switched to Castrol Syntec for a short period of time during that event. Once Mobil supplies were back, Costco cleared out their remaining Castrol supply for $9.99/case. I purchased multiple cases. The last of that supply is now in the Mazda.

DATE SAMPLED 20-May-18
DATE RECEIVED 24-May-18
DATE REPORTED 25-May-18

TIME ON UNIT 77230
TIME ON OIL 2502


Castrol Syntec ENG Oil SAE 5W30

Metals (ppm)
Iron (Fe) 4
Chromium (Cr) <1
Lead (Pb) <1
Copper (Cu) 2
Tin (Sn) 2
Aluminium (Al) 2
Nickel (Ni) <1
Silver (Ag) <1
Titanium (Ti) <1
Vanadium (V) <1
Contaminants (ppm)
Silicon (Si) 3
Sodium (Na) 2
Potassium (K) <1
Additives (ppm)
Magnesium (Mg) 13
Calcium (Ca) 2603
Barium (Ba) 1
Phosphorus (P) 611
Zinc (Zn) 695
Molybdenum (Mo) 88
Boron (B) 38
Contaminants
Water (%) <0.05
Coolant No
Physical Tests
Viscosity (cSt 100C) 10.0
Physical / Chemical
Base Number (mgKOH/g) 6.4

Last edited by SnowmanCO; 05/29/18 11:02 AM.

16 F150 5.0-QS UD 5w20,MtCrft FL500S
10 Merc C300-Cast Syn 0w40,Mahle OX 345/7 D
08 Maz3S 2.3-Mob 1 5w20,Wix 57203XP
17JD D160-Mob 1 10w30,JD AM125424
Re: 2008 Mazda 3 Sport 2.3, Castrol Syntec 5w30 [Re: SnowmanCO] #4771069
05/29/18 11:01 AM
05/29/18 11:01 AM
Joined: Oct 2009
Posts: 4,910
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline

Joined: Oct 2009
Posts: 4,910
Wet side WA
Looks super.


2004 Corolla 134004
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 75175
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: 2008 Mazda 3 Sport 2.3, Castrol Syntec 5w30 [Re: SnowmanCO] #4771095
05/29/18 11:33 AM
05/29/18 11:33 AM
Joined: May 2009
Posts: 13,072
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline

Joined: May 2009
Posts: 13,072
N.H, U.S.A.
Any reason to change at 6m onths 2500 miles? I know 6 months can appear to be some uncrossable milestone - it IS in my Warranteed Nissan smile - but here I could see 1 year 5K ... No hay problema!


2019 VW Jetta S 6MT OCI#0 5033mi-Castrol Edge Prof? VW508+OE Filter; '17 Subaru Crosstrek CVT OC#7 52665mi-Castrol GTX Magnatec 5W20 + SOA Filter
Re: 2008 Mazda 3 Sport 2.3, Castrol Syntec 5w30 [Re: ARCOgraphite] #4771111
05/29/18 11:42 AM
05/29/18 11:42 AM
Joined: Apr 2009
Posts: 136
Seattle, WA
SnowmanCO Offline OP
SnowmanCO  Offline OP

Joined: Apr 2009
Posts: 136
Seattle, WA
Originally Posted By: ARCOgraphite
Any reason to change at 6m onths 2500 miles? I know 6 months can appear to be some uncrossable milestone - it IS in my Warranteed Nissan smile - but here I could see 1 year 5K ... No hay problema!


I agree with you. Especially after getting the UOA report. I simply like to stick with Mazda's recommendations for normal service (7.5K/6M). I enjoy changing the oil, and have many filters stocked up to use. My other vehicles only call for changes once per year, so I have to keep myself busy somehow smile .


16 F150 5.0-QS UD 5w20,MtCrft FL500S
10 Merc C300-Cast Syn 0w40,Mahle OX 345/7 D
08 Maz3S 2.3-Mob 1 5w20,Wix 57203XP
17JD D160-Mob 1 10w30,JD AM125424
Re: 2008 Mazda 3 Sport 2.3, Castrol Syntec 5w30 [Re: SnowmanCO] #4771112
05/29/18 11:43 AM
05/29/18 11:43 AM
Joined: Apr 2009
Posts: 136
Seattle, WA
SnowmanCO Offline OP
SnowmanCO  Offline OP

Joined: Apr 2009
Posts: 136
Seattle, WA
Oil filter was Wix 57203 - Pics


16 F150 5.0-QS UD 5w20,MtCrft FL500S
10 Merc C300-Cast Syn 0w40,Mahle OX 345/7 D
08 Maz3S 2.3-Mob 1 5w20,Wix 57203XP
17JD D160-Mob 1 10w30,JD AM125424
Re: 2008 Mazda 3 Sport 2.3, Castrol Syntec 5w30 [Re: ARCOgraphite] #4771436
05/29/18 05:47 PM
05/29/18 05:47 PM
Joined: Feb 2010
Posts: 2,766
Bend, Oregon
Oregoonian Offline
Oregoonian  Offline

Joined: Feb 2010
Posts: 2,766
Bend, Oregon
Originally Posted By: ARCOgraphite
Any reason to change at 6m onths 2500 miles? I know 6 months can appear to be some uncrossable milestone - it IS in my Warranteed Nissan smile - but here I could see 1 year 5K ... No hay problema!


Same thought......


03' Ford Focus SE(2.3L Duratec PZEV)/ 140K +
Pnz. Ultra 0w20 / Fram 'Ultra'/ OCI: 8000 +/-
ATF: Mercon V w/Lubegard Red

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