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08-30-2015, 10:57 PM | #19 |
It's the illusion you see
Drives: 07 Yaris Sedan Aero Join Date: Oct 2006
Location: Brossard, QC
Posts: 3,888
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Synthetic oil is NOT thinner! Viscosity remain the same (almost, since they cannot be exactly identical) between the 2 types of oil!
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08-31-2015, 06:00 AM | #20 | |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Quote:
Not only that if you have oil leaks like an older engine is likely to develop it leaks out faster too.
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Synthetic Oil: Its All In Your Head |
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01-06-2019, 03:45 PM | #21 |
Drives: Sedan Yaris 2010 Join Date: Dec 2017
Location: Nigeria
Posts: 54
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Loosing oil
Hello,
Though old thread, but I have noticed am loosing oil since I started using synthetic oil and Fram filters. My millage is about 130k, no sign of leakage and car runs well could the change to synthetic be the problem or Fram filters? Regards |
01-06-2019, 04:33 PM | #22 |
Drives: '08 2zr swapped Vios M/T Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
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Subthetic oil tends to leak/burn more in an old engine as it is thinner at cold temps and flows better into small spaces even if viscosity is identical. If you want the synthetic oil for cold starts then go with a 0w40 instead of a 0w30. Based on your location I dint think your concern is cold start so just switch back to a conventional oil or go to a thicker viscosity
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01-21-2019, 02:49 PM | #23 | |
Drives: Sedan Yaris 2010 Join Date: Dec 2017
Location: Nigeria
Posts: 54
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Quote:
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01-21-2019, 03:03 PM | #24 |
Drives: '08 2zr swapped Vios M/T Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
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5w30 should be fine, but there is no way of really knowing if you exceed factory specs without knowing oil temp and/or pressure. None of which is available without an aftermarket gauge.
The only way going to a heavier weight oil makes sense is if you are operating above 212F oil temps, or if you want to reduce oil consumption and you notice it helps. You could try a 10w30 as they are slightly thicker than a 5w30 and potentially may reduce oil consumption. The difference between a 5w30 and a 10w30 isn't very big however as they both have to fall into the same viscosity spectrum at 100C. Most 10w30's are a big thicker at 150C due to a higher HTHS rating but like I said, it may not be noticeable enough for consumption issues.
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03-24-2019, 04:51 PM | #25 | |
Drives: Sedan Yaris 2010 Join Date: Dec 2017
Location: Nigeria
Posts: 54
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Quote:
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03-24-2019, 04:58 PM | #26 | |
It's the illusion you see
Drives: 07 Yaris Sedan Aero Join Date: Oct 2006
Location: Brossard, QC
Posts: 3,888
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Quote:
Typically, oil weight tend to be quite heavy in tropical countries.. What oil is available in your country? Sent from my CLT-L04 using Tapatalk |
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03-25-2019, 02:19 AM | #27 |
Drives: 07 5dr Join Date: Nov 2015
Location: YYC
Posts: 197
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Short answer is no, oil burning is a symptom of engine wear (most likely worn piston rings). You can try to minimize the running by running a thick oil like 20w50 but the downside in somewhat lower fuel economy. Maybe look for a non synthetic 15W40 or 10W40.
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03-25-2019, 02:58 AM | #28 | |
Drives: Sedan Yaris 2010 Join Date: Dec 2017
Location: Nigeria
Posts: 54
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Quote:
Then we have 20w50 conventional, am told using this causes sludge and reduces engine performance. It's 5w30 on the engine cap and the car is USA spec |
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03-26-2019, 07:10 PM | #29 |
Drives: 2008 Yaris 3DR Hatch MT Join Date: Dec 2018
Location: Harrisburg, PA
Posts: 80
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When the engine is up to temperature in Adak, Alaska or Phoenix, Arizona the oil is 250F.
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03-26-2019, 07:23 PM | #30 | |
Drives: '08 2zr swapped Vios M/T Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
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Quote:
Middle of summer around here oil sits around 220F, in the spring when temps are not as extreme, the oil sits at 210F and during the middle of winter it sits around 180F. These temps are all while.driving on the highway for longer than 30 mins not in traffic, needless to say the engine is well up to temps
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03-26-2019, 08:35 PM | #31 |
Drives: 2007 2-door hatchback Join Date: Jul 2016
Location: USAnotCA
Posts: 750
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Thermostat opening versus temperature curve.
Yes. Higher ambient gives higher coolant and oil temperature. Thermostats, or most thermostats, don't flip from full closed to full open at one temperature. In cold winter, a temperature gets maintained with little coolant flow. So the thermostat isn't very far open. In sweltering heat, the temp may not stabilize until the thermostat is nearly open. And more open takes a higher temperature. The thermostat has an opening versus temperature curve.
And coolant doesn't cool some places so well. The oil pan can be getting radiation and conduction from sub freezing pavement/air or very hot asphalt and the air it heats. |
03-26-2019, 09:27 PM | #32 | |
Drives: '08 2zr swapped Vios M/T Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
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Quote:
On the flip side, in my 2zr with 5w30 full syn oil (factory fill is 0w20) and coolant temps reaching 230F, the oil climbs to just above 280F and stays there until a cool down lap. That is at full WOT and close to redline rpm's though.
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03-27-2019, 08:42 AM | #33 |
Drives: 2003 Mach 1 Join Date: Oct 2008
Location: Georgia
Posts: 293
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Royal Purple 5w30 for the entire life of the car so far... I'm at 358k miles with no leaks or engine issues thus far!
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03-27-2019, 10:19 AM | #34 | |
It's the illusion you see
Drives: 07 Yaris Sedan Aero Join Date: Oct 2006
Location: Brossard, QC
Posts: 3,888
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Quote:
I've started with a syn oil change at the dealer. (Mobil1) after that I've used RP many years with 6000km intervals. RP became hard to come by, or prices in local shops are way too high. Then I've used Prolabs oil for a while. They are a local company but with time, I've lost contact with the person who could get it for me. In recent years, I've switched to Amsoil. Today, I noticed my rear bumper being a little black. Makes me wonder if my engine is taking a little oil. I did not get a full gallon of oil out on my last drain. I'm also abusing the engine a little as well, since it doesn't get many chances to fully warm up before I arrive to destination for the past 10years. Sent from my CLT-L04 using Tapatalk |
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03-27-2019, 07:20 PM | #35 |
Drives: 2008 Yaris 3DR Hatch MT Join Date: Dec 2018
Location: Harrisburg, PA
Posts: 80
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Oh for God sake not another oil post! Make it stop! Listen, it's a little generic rusted out old sh1t box of a car. Put whatever oil you have into it and it will run for 400K miles. I mean seriously, if you're are using royal purple every 3k miles in your Yaris, you're flushing money down the toilet. There isn't s Rolls Merlin under the hood. If its liquid, made out of something with lubricity and has a flash point over 300F, dump it in and drive. At the end of the day who gives a f@ck?
Last edited by 2bz; 03-29-2019 at 07:26 PM. |
03-27-2019, 07:28 PM | #36 | |
It's the illusion you see
Drives: 07 Yaris Sedan Aero Join Date: Oct 2006
Location: Brossard, QC
Posts: 3,888
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Quote:
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