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Mobil1 Euro 0w40, 3909km OCI, 2010 STI #5249756 10/25/19 10:54 AM
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mcwilly Offline OP
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This is the third analysis on this car. Things are looking up!

First oil was Motul Xcess 5w40, second was Rotella T6 5w40, this report is Mobil1 Euro 0w40 (with 5 oz of Hyperlube Zinc Replacement), filled it with GC 0w40 (with the rest of the Hyperlube ~7oz).

Remaining in my stash I have one more jug of Rotella T6 5w40, a 5 gallon pail of Rotella T6 0w40, then a jug of PP Euro 5w40.

I'll see how the next couple analysis look, but this Mobil1 w/ Hyperlube might be my magic mix.

Untitled.jpg

2016 Mazda CX3 48,000km
2010 Subaru Sti 77,000km
2007 Buick Rendezvous 105,000km
2001 Toyota Echo 262,000km
Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: mcwilly] #5249791 10/25/19 11:40 AM
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TiGeo Offline
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2500 miles? Of course it looks good.


2018 VW Atlas SEL 4Motion 3.6 VR6 - Castrol OE 5W40 VW filter
2018 VW GSW S 4Motion 1.8 TSI Unitronic St2 IS20 - LiquiMoly 5W40 VW filter
2013 Ford Focus SE HB 2.0 Ti-VCT - MC syn-blend 5W20 MC filter
Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: TiGeo] #5249797 10/25/19 11:47 AM
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tundraotto Offline
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Originally Posted by TiGeo
2500 miles? Of course it looks good.


^ YEA....AND you added an additive.....makes the sample uncomparable to the others. Apples to oranges.

Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: mcwilly] #5250085 10/25/19 06:27 PM
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mcwilly Offline OP
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All the samples are similar intervals (annual oil changes) and other additives were used in in the past (note the moly in the rotella).


2016 Mazda CX3 48,000km
2010 Subaru Sti 77,000km
2007 Buick Rendezvous 105,000km
2001 Toyota Echo 262,000km
Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: mcwilly] #5250134 10/25/19 07:12 PM
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tundraotto Offline
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apples to oranges....whats oil and whats additives? useless IMHO

Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: mcwilly] #5250297 10/26/19 12:12 AM
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edyvw Offline
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What is point of using additives?


11' BMW 328i xDrive 6MT (BMW TPT 5W30+OE filter)
11' VW Tiguan 2.0T (Castrol 0W30+OE filter)
15' Toyota Sienna AWD (Mobil1 5W30 EP+OEM filter).
Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: edyvw] #5250519 10/26/19 10:12 AM
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mcwilly Offline OP
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Originally Posted by edyvw
What is point of using additives?


The first two oil samples showed uncharacteristically high iron wear numbers. I had never seen a UOA for this engine with iron in the double digits before, not even on much longer OCIs. This is using 40wt synthetics as well. I asked for any advice on what to use.

Molakule suggested Hyper Lube zinc replacement.

This engine generates around 340hp at the crank, and I have plans to convert to flex fuel, where running E85 could mean around 400hp.

So I'm looking for maximum protection, not extended OCIs.


2016 Mazda CX3 48,000km
2010 Subaru Sti 77,000km
2007 Buick Rendezvous 105,000km
2001 Toyota Echo 262,000km
Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: mcwilly] #5250564 10/26/19 12:12 PM
Joined: Oct 2016
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c5z06 Offline
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Nice, do you plan on using the same additive in your next change to see if it’s the oil or the additive? I enjoy seeing STI UOA and don’t see why mileage is an issue if that’s your usual OCI. I’m trying Pennzoil Euro L in my ‘19 STI.

Do you have a cat less DP?

Last edited by c5z06; 10/26/19 12:13 PM.
Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: mcwilly] #5250588 10/26/19 01:05 PM
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mcwilly Offline OP
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No I have a cobb downpipe then catback exhaust, cat still intact.

Yes I used the same additive with a different oil.


2016 Mazda CX3 48,000km
2010 Subaru Sti 77,000km
2007 Buick Rendezvous 105,000km
2001 Toyota Echo 262,000km
Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: mcwilly] #5250676 10/26/19 03:49 PM
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JAG Offline
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I like Hy-per Lube ZRA based on reading literature on polymer esters, which it entirely consists of. It’s a fascinating lubricant with unusual properties, like decreasing the activation temperature of ZDDP, being polar enough to adhere to metals more than Group II-IV oils but not so polar as to interfere with anti wear additives, be quite viscous yet not increase the viscosity of the host oil it is mixed with as much as would be predicted if it were Group I-IV.

Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: JAG] #5250772 10/26/19 06:53 PM
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c5z06 Offline
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Sounds too good to be true honestly. Any harm in running that normally ?

Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: c5z06] #5251124 10/27/19 08:56 AM
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JAG Offline
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Originally Posted by c5z06
Sounds too good to be true honestly. Any harm in running that normally ?

I’ve never read about any downsides, other than cost, when used at an appropriate treat rate. Here is a thread about it with a lot of links to literature: https://www.bobistheoilguy.com/forums/ubbthreads.php/ubb/printthread/Board/5/main/286281/type/thread

Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: mcwilly] #5252260 10/28/19 03:58 PM
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bluesubie Offline
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JAG/mcwilly - Thanks for the feedback on Hy-per Lube ZRA and mcwilly thanks for the uoa. All this time I never realized it was an ester additive. Always noticed the “Zinc” but not “Zinc Replacement”.


'20 Subaru Outback Onyx XT | FF Idemitsu 0W-20
'04 Subaru Forester 2.5XT | Edge 0W-40
Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: mcwilly] #5254778 10/31/19 06:56 AM
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BMWTurboDzl Offline
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OP: Please don't take this the wrong way but you are wasting your $$ on UOA's. With the ridiculously low interval even a conventional 5w30 will appear to be fine and as a result you simply cannot draw any conclusions.


“It took untold generations to get you where you are. A little gratitude might be in order. If you’re going to insist on bending the world to your way, you better have your reasons.”

435i
Re: Mobil1 Euro 0w40, 3909km OCI, 2010 STI [Re: BMWTurboDzl] #5254961 10/31/19 10:10 AM
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c5z06 Offline
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Originally Posted by BMWTurboDzl
OP: Please don't take this the wrong way but you are wasting your $$ on UOA's. With the ridiculously low interval even a conventional 5w30 will appear to be fine and as a result you simply cannot draw any conclusions.


Not following as his results do show a reduction in wear metals with similar OCI's?

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