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20,000 Mile Oil Analysis #5343606 02/07/20 10:54 AM
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Pete44 Offline OP
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2013 Lexus CT200h with 85,000 mi on 1.8L (1.798 L) 2ZR-FXE Toyota engine. This is the same as many Prius engines.

I decided with decreased duty cycle (hybrid), a 20,000 mile OCI would be reasonable. I drive fairly easily but mountain roads in Colorado, lots of highway. Climbing hills a lot, but also going down them, where engine isn't working. I assume there's probably 30% less work load from hybrid compared to "standard" engine.

Oil: Mobile-1 Annual Protection 0W-20 (from what I can gather, this had added base package to neutralize acid accumulation over time)

Filter: Purolator PurOne (these are now Purolator One filters), which is reported to have over 99% efficiency at 20 micron particle size. I do not know filter "holding" capacity, but this is a smaller cartridge filter which goes inside the plastic canister (canister is part of engine and is reused)

Here is Blackstone Labs Analysis:


Last edited by M56959; 02/07/20 04:42 PM. Reason: Removed personal information
Re: 20,000 Mile Oil Analysis [Re: Pete44] #5343619 02/07/20 11:15 AM
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Donald Online Content
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I would go with a filter designed for extended oil changes. Amsoil or Mobil 1 but not what you used. You can send oil filter to be tested also.

But a decent UOA.

I would not go above 20K.

Another alternative is to change the oil filter half way through.


2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: 20,000 Mile Oil Analysis [Re: Pete44] #5343630 02/07/20 11:22 AM
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haggler Offline
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I had this car for over a year and a half and when I changed the factory fill at 10k the oil still looked great.
I agree - use the mobile 1 filter that they advertise for 20k. On the hwy the engine for this car seem always to be on. Great city commuting car.

Last edited by haggler; 02/07/20 11:24 AM.

2019 MX-5 Soft Top Miata Soul Red Crystal
M1 EP 0w20
M1 EP 108a Filter
Re: 20,000 Mile Oil Analysis [Re: Pete44] #5343654 02/07/20 11:55 AM
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jayjr1105 Offline
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Stupidly good UOA. Fram Ultra, Mobile 1, RP, or better filter next time though. Puro One blue cans are only good up until 10K. People here would kill to see that filter cut open with Puro tearing issues and all. Clearly wasn't a problem for you however.


2013 Mazda 3 - PP 0w20
2005 Honda Odyssey - PP HM 5w20
Re: 20,000 Mile Oil Analysis [Re: Pete44] #5343668 02/07/20 12:06 PM
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ad244 Offline
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Amazing numbers honestly for the run time. Dont listen to the haters, its obviously working well for you. Obviously the filtration seems to have worked any chance you have the filter to cut open?

Iron in your 20,000 mile run is less then that of a a 4,000 mile run on a GM vehicle.

Re: 20,000 Mile Oil Analysis [Re: Pete44] #5343682 02/07/20 12:21 PM
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tundraotto Online Content
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Stellar report.

I guess everyone missed where you said that this was a cartridge filter....got any pics of the used filter, or already gone?

Re: 20,000 Mile Oil Analysis [Re: Pete44] #5343731 02/07/20 01:31 PM
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buster Offline
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One of the best UOA's I've seen on this board. No makeup oil either. Perfect viscosity and low wear metals. With a Tbn of 3.2 and no sign of oxidation this oil technically had more life in it.


2019 Frontier Pro 4X - RGT 5w30
2019 Impreza Sport - OE fill
Re: 20,000 Mile Oil Analysis [Re: Pete44] #5343842 02/07/20 03:41 PM
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D1dad Offline
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The jeep guys rave about 0-20 Ap as being one of the best. I don’t know much about numbers but the comparisons I saw to 5-30 had the AP looking pretty tough to beat.

Re: 20,000 Mile Oil Analysis [Re: Pete44] #5343850 02/07/20 03:54 PM
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4WD Offline
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Fantastic run - have a big stash of that and have to decide how brave to get

Re: 20,000 Mile Oil Analysis [Re: Pete44] #5343852 02/07/20 03:55 PM
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JHZR2 Offline
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Wow that’s great. My accord hybrid, which gets more of a mix of short commutes and highway trips, doesn’t show as well on M1EP.

Wonder if AP is the secret?

Re: 20,000 Mile Oil Analysis [Re: JHZR2] #5343854 02/07/20 03:59 PM
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kschachn Offline
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Originally Posted by JHZR2
Wow that’s great. My accord hybrid, which gets more of a mix of short commutes and highway trips, doesn’t show as well on M1EP.

Wonder if AP is the secret?

Or other than TBN how much of the good report is actually due to the oil as opposed to the specific engine and operating conditions?


1994 BMW 530i, 252K
1996 Honda Accord, 288K
1999 Toyota Sienna, 434K
2000 Toyota ECHO, 284K
Re: 20,000 Mile Oil Analysis [Re: Pete44] #5343873 02/07/20 04:25 PM
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You might want to redact your personal info.

Re: 20,000 Mile Oil Analysis [Re: Pete44] #5346661 02/10/20 08:11 PM
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Pete44 Offline OP
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Hey Guys, sorry I haven't been on in a while. Appreciate all the feedback and yeah, I should have probably not put my personal info on there (mods took it down) but I'm not really sure how people would use that against me. I'm just not a very paranoid guy, but probably a bit naive and uneducated as to what can be done with that.

Very sorry to have thrown the filter out. It looked good. I didn't cut it apart, but did spread the pleats and didn't notice any tears. Filter looked to be in good shape, but certainly will take pictures and cut it apart (even though it's a cartridge filter, I could cut the media away and spread it out on a table) and post next time.

In regards to type of use, good point made that my good numbers may have a lot to do with how I manage the engine. Although I live in the mountains of CO, I keep the car garaged and so it's never started below about 45-50 degrees F. Also, I try to let the engine warm up for a minute or two before I drive and often drive really easily in the first few minutes to really let the engine warm up gently. I think this has a lot to do with my numbers, since most of these miles are highway. Austin, TX but working in San Antonio for the first ~12,000 miles, several long trips to Amarillo and then CO to Tucson, AZ and back twice in the last month before the oil change. Also, commuting 8 hours / week highway (through the mountains for 3 hours of that) every week during the last 8,000 miles.

So really, there has probably been a pretty high duty-cycle on the engine with, guessing, 75% highway miles and some of that done on interstates at 80mph (when limit is 75). The Colorado miles in the mountains are slower, but up steep grades...although the downhill grades are largely engine-off.

My research said Purolator One had really good (? 99% @ 20-micron) filtration, which is why I went with it, but I hear everyone on the break-down concerns. Would really like to figure out what would be best going forward. Another Purolator One is on there now.

Anyway, sum total, thanks for taking my personal info down, thanks for all the great feedback and celebrating with me (must admit, I was a bit nervous...but fairly confident I'd come out well).

I think warming an engine up gently, and having a lower duty-cycle due to hybrid drive, are probably the two most important things I did to get this great result. I'm not taking Blackstone's advice and trying for 23,000 miles next time. I'm just going to stick to 20,000 and probably research a better filter. As for changing the filter and not the oil...I just am not that confident I could collect the oil cleanly enough, not getting any contaminants in it...and with all the trouble of getting under there and changing the filter, I figure I'll change the oil at the same time.


Last edited by Pete44; 02/10/20 08:14 PM.
Re: 20,000 Mile Oil Analysis [Re: Pete44] #5346700 02/10/20 08:51 PM
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I was using the ap 0w20 m1 and consumption was unacceptable. Only 2500 miles on this oil change and it needed almost 1/5 of a qt. Using Redline 0w20 prior so I can expect everything else to not hold up as well. Drained only crankcase and refilled with M1 0w30 and a dash of lubegard. I'm guessing having the higher mileage and revs are part of the issue. So far the 0w30 has held up and the idle is better like when I ran redline.


15' Civic 1.8 i-vtec 311,000 mi M1 0w30 & LG Biotech, BP CVT Fluid,GUMOUT W/ PEA
Doberman Whisperer!
E pluribus unum.

Re: 20,000 Mile Oil Analysis [Re: Pete44] #5346754 02/10/20 10:45 PM
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Pete44 Offline OP
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I thought, in the interest of thread discussions, it would be useful to have the Blackstone data posted up again. I removed all my personal info this time.

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