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2011 Prius, Eneos 0W-20 Synthetic, 5,018 miles #4451585
07/06/17 05:05 PM
07/06/17 05:05 PM
Joined: Aug 2004
Posts: 20,200
CA
The Critic Offline OP
The Critic  Offline OP
Joined: Aug 2004
Posts: 20,200
CA
This is an oil analysis report from my daily driver. The driving style was about 50/50 city/highway most city trips are about 10 miles in length and are at higher speeds (>40 mph), so the gas engine is running.

This car has only seen synthetic oil from day 1; all oil changes except 1 or 2 have been with 0W-20. For the first 90k miles, I followed the OEM specified 10K intervals but noticed that the oil started to get extremely dark as the engine aged. Since then, I have scaled back to 5K intervals.

Total time on this oil was about 3 months. This was Eneos 0W-20 from WorldPac with a Genuine Toyota oil filter. There was no oil consumption.

***
Miles on Oil: 5,018
Total Miles on Unit: 153,364
Sample Date: 6/27/17
Make Up Oil Added: 0 qts

Aluminum: 3
Chromium: 0
Iron: 4
Copper: 0
Lead: 0
Tin: 0
Molybdenum: 162
Nickel: 0
Manganese: 0
Silver: 0
Titanium: 0
Potassium: 1
Boron: 51
Silicon: 7
Sodium: 3
Calcium: 1915
Magnesium: 102
Phosphorus: 679
Zinc: 802
Barium: 0

SUS Viscosity @ 210F: 50.2
cSt Viscosity @ 100C: 7.33
Flashpoint in F: 400
Fuel %: <0.5
Antifreeze %: 0
Water %: 0
Insolubles %: 0.2
TBN: 4.1


2011 Toyota Prius - 178k - Various 0W-20 (Brew)
2007 Honda Accord 2.4 - 133K - Mobil 1 EP HM 5W-30
Re: 2011 Prius, Eneos 0W-20 Synthetic, 5,018 miles [Re: The Critic] #4451612
07/06/17 05:31 PM
07/06/17 05:31 PM
Joined: Oct 2014
Posts: 12,577
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,577
Idaho
Why use syn For your oil change intervals?


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: 2011 Prius, Eneos 0W-20 Synthetic, 5,018 miles [Re: The Critic] #4451615
07/06/17 05:33 PM
07/06/17 05:33 PM
Joined: Aug 2009
Posts: 3,920
Pittsburgh,PA U.S.A.
JimPghPA Offline
JimPghPA  Offline
Joined: Aug 2009
Posts: 3,920
Pittsburgh,PA U.S.A.
25,560 miles a year is a great application for a hybrid. Hybrids save a lot of cash in high millage applications.


Boy will I be happy when ALL vehicles on public roads are autonomous.


JimPghPa

Re: 2011 Prius, Eneos 0W-20 Synthetic, 5,018 miles [Re: CT8] #4451620
07/06/17 05:36 PM
07/06/17 05:36 PM
Joined: Aug 2004
Posts: 20,200
CA
The Critic Offline OP
The Critic  Offline OP
Joined: Aug 2004
Posts: 20,200
CA
Originally Posted By: CT8
Why use syn For your oil change intervals?


0W-20 synthetic is the OEM specified oil. You should always use the specified oil, even if you reduce the service interval.


2011 Toyota Prius - 178k - Various 0W-20 (Brew)
2007 Honda Accord 2.4 - 133K - Mobil 1 EP HM 5W-30
Re: 2011 Prius, Eneos 0W-20 Synthetic, 5,018 miles [Re: The Critic] #4451645
07/06/17 06:06 PM
07/06/17 06:06 PM
Joined: Sep 2010
Posts: 376
Ontario, Canada
MobilinHyundia Offline
MobilinHyundia  Offline
Joined: Sep 2010
Posts: 376
Ontario, Canada
Originally Posted By: The Critic
Originally Posted By: CT8
Why use syn For your oil change intervals?


0W-20 synthetic is the OEM specified oil. You should always use the specified oil, even if you reduce the service interval.


Iaw, Just a wasted of a good oil.

That is it, people come here to learn about oil but if the old timers (19000 posts) do the same as somebody who know nothing about oil changes,
What is the point of this forum?
Im been here many years so it was all a wasted of time!


RIP......2009 Sonata GL 2.4L (226000km)-QS FS 5W20, OEM oil filter
2009 Sonata LTD 2.4L (170000km)Castrol Edge 5W20,

2018 Sedona SX+ -TOTAL INEO mc3 5W30 with Kia filter
Re: 2011 Prius, Eneos 0W-20 Synthetic, 5,018 miles [Re: The Critic] #4451666
07/06/17 06:41 PM
07/06/17 06:41 PM
Joined: Mar 2011
Posts: 693
Ont Canada
Koz1 Offline
Koz1  Offline
Joined: Mar 2011
Posts: 693
Ont Canada
With the wear you have I would try 7500 cause you have almost no wear. No joke. 10k just might have been good.
Has your engine computer ever been reset? Like disconnect the negative and turn on the lights drain the system reconnect so it resets?
With that TBN its really early to dump it.


Currently using, Fuchs TITAN GT1 PRO FLEX 5W-30, M1 5W-20 and Castrol Edge 0W-20 Gold B.
Re: 2011 Prius, Eneos 0W-20 Synthetic, 5,018 miles [Re: The Critic] #4451690
07/06/17 07:10 PM
07/06/17 07:10 PM
Joined: Dec 2002
Posts: 41,536
'Stralia
Shannow Online content
Shannow  Online Content
Joined: Dec 2002
Posts: 41,536
'Stralia
>15% KV100 loss...

So much for the "0w20s never shear" argument.

Re: 2011 Prius, Eneos 0W-20 Synthetic, 5,018 miles [Re: The Critic] #4451761
07/06/17 08:22 PM
07/06/17 08:22 PM
Joined: Apr 2016
Posts: 1,585
Oregon
1JZ_E46 Offline
1JZ_E46  Offline
Joined: Apr 2016
Posts: 1,585
Oregon
Nice report. Probably could have gone longer but no harm in changing it early.


2007 X5 4.8i: M1 HM 10W-30
2016 Countryman S: EDGE 0W-30
Re: 2011 Prius, Eneos 0W-20 Synthetic, 5,018 miles [Re: The Critic] #4451783
07/06/17 08:36 PM
07/06/17 08:36 PM
Joined: Jan 2009
Posts: 13,975
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,975
Illinois
Metal numbers are low. So much for high wear with 0-20 oil.


2007 Ford Fusion 235,000 miles
M1 0-20 EP
2017 Ford Fusion 60K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and Valvoline LV
M1 10-30 in all OPE
MC filters

Re: 2011 Prius, Eneos 0W-20 Synthetic, 5,018 miles [Re: tig1] #4451994
07/07/17 04:59 AM
07/07/17 04:59 AM
Joined: Nov 2011
Posts: 4,967
MTL, CANADA
Rolla07 Offline
Rolla07  Offline
Joined: Nov 2011
Posts: 4,967
MTL, CANADA
Originally Posted By: tig1
Metal numbers are low. So much for high wear with 0-20 oil.


Yep.

Not sure why people are being critical, I use full syn for 5k mile intervals also. I dont find it a waste. Everyone has their opinion on this site and thats what makes it good.


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: 2011 Prius, Eneos 0W-20 Synthetic, 5,018 miles [Re: tig1] #4452254
07/07/17 10:19 AM
07/07/17 10:19 AM
Joined: Apr 2016
Posts: 1,585
Oregon
1JZ_E46 Offline
1JZ_E46  Offline
Joined: Apr 2016
Posts: 1,585
Oregon
Originally Posted By: tig1
Metal numbers are low. So much for high wear with 0-20 oil.


Well, context matters here. A low power Prius engine certainly has lower film strength (HTHS) requirements so 0W-20 works fine. Not so much for other engines.


2007 X5 4.8i: M1 HM 10W-30
2016 Countryman S: EDGE 0W-30

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