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suggestions for a high mileage commuter? #4698618
03/18/18 11:38 AM
03/18/18 11:38 AM
Joined: Mar 2018
Posts: 7
Canada
oil_burner Offline OP
oil_burner  Offline OP
Joined: Mar 2018
Posts: 7
Canada
I have a 2006 Prius that is at 250k and going up rather quickly. I have a 120 mile round trip commute each day that involves climbing a mountain pass and the little 1.5L engine spends a lot of time at redline on the way up.

The car burns approx 1 qt per 2000 miles, I have tried several different oils from 0-20 to 5-40 diesel oil neither seems to completely stop the oil consumption. A new PCV valve did not help things, it smokes a bit on startup when cold leading me to believe its valve stem seals.

My goal is to reduce running costs as much as possible. I work a lot and dont have much free time to change my own oil. I have been running Dino oil with FRAM ultra synthetic gold filters. I drop the oil at 7000-9000 mile intervals and the last filter I took to 16,000. Just looking for some suggestions as to how I can extend the life of this engine a bit more. The reason I have the long intervals is I think having a weekly oil top-up would constantly be giving the engine fresh oil.

The previous owner always used synthetic up until 150k when it started to consume oil it was switched to Dino. I am mainly looking at this from a cost perspective, this car is a beater and I want to keep it running with minimal oil costs. Here in Canada a jug of synthetic is $30 and Dino can be had for $13. Any suggestions should I switch back to synthetic or stay with Dino?

Re: suggestions for a high mileage commuter? [Re: oil_burner] #4698619
03/18/18 11:40 AM
03/18/18 11:40 AM
Joined: Sep 2008
Posts: 3,987
Southeast Texas
gfh77665 Offline
gfh77665  Offline
Joined: Sep 2008
Posts: 3,987
Southeast Texas
I would use a conventional mono grade, unless you are in full blown arctic conditions.

Re: suggestions for a high mileage commuter? [Re: oil_burner] #4698640
03/18/18 11:54 AM
03/18/18 11:54 AM
Joined: Mar 2014
Posts: 3,486
NJ
Leo99 Offline
Leo99  Offline
Joined: Mar 2014
Posts: 3,486
NJ
I'd just use cheap oil and keep it topped off.


Without data you're just another person with an opinion. W. E. Deming

2003 Corolla 250,000 miles (RIP)
2004 Corolla 125,000 miles
2004 Rav4 370,000 miles
2015 Camry 70,000 miles
Re: suggestions for a high mileage commuter? [Re: oil_burner] #4698651
03/18/18 12:03 PM
03/18/18 12:03 PM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline
Joined: Jul 2017
Posts: 542
Texas (south)
There's your mistake. You want to go 7,000-9,000 on conventional. Toyota's own oil is not even conventional.

Go 5k on SuperTech or Castrol.


Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: suggestions for a high mileage commuter? [Re: oil_burner] #4698660
03/18/18 12:11 PM
03/18/18 12:11 PM
Joined: Sep 2014
Posts: 1,491
Toronto Canada
WobblyElvis Offline
WobblyElvis  Offline
Joined: Sep 2014
Posts: 1,491
Toronto Canada
If the rings are worn and allow some blow-by to contaminate the oil, it's probably a good idea to change the filter every oil change. If the oil turns black quickly, I would suspect the rings.

Re: suggestions for a high mileage commuter? [Re: FermeLaPorte] #4698665
03/18/18 12:20 PM
03/18/18 12:20 PM
Joined: Mar 2018
Posts: 7
Canada
oil_burner Offline OP
oil_burner  Offline OP
Joined: Mar 2018
Posts: 7
Canada
Originally Posted By: FermeLaPorte
There's your mistake. You want to go 7,000-9,000 on conventional. Toyota's own oil is not even conventional.

Go 5k on SuperTech or Castrol.



keep in mind that at 5k I have already added 2 quarts of fresh oil back into the sump...or about 50%.

Re: suggestions for a high mileage commuter? [Re: oil_burner] #4698669
03/18/18 12:31 PM
03/18/18 12:31 PM
Joined: Feb 2013
Posts: 11,100
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline
Joined: Feb 2013
Posts: 11,100
Phoenix, AZ
I'd just use a synthetic 5w30 and change it every 15k miles or 24k kilometers.


2015 Hyundai Sonata 2.4L 89k Motorcraft Synthetic Blend 5w30 & OEM
2000 Toyota Camry 2.2L 231k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: suggestions for a high mileage commuter? [Re: WobblyElvis] #4698681
03/18/18 12:49 PM
03/18/18 12:49 PM
Joined: Feb 2003
Posts: 6,003
Cajun Country, La.
BlueOvalFitter Offline
BlueOvalFitter  Offline
Joined: Feb 2003
Posts: 6,003
Cajun Country, La.
Originally Posted By: WobblyElvis
If the rings are worn and allow some blow-by to contaminate the oil, it's probably a good idea to change the filter every oil change. If the oil turns black quickly, I would suspect the rings.

I would change the oil filter EVERY OCI no matter what.

Re: suggestions for a high mileage commuter? [Re: oil_burner] #4698682
03/18/18 12:53 PM
03/18/18 12:53 PM
Joined: Jan 2017
Posts: 2,037
VW Fanboy Island
maxdustington Offline
maxdustington  Offline
Joined: Jan 2017
Posts: 2,037
VW Fanboy Island
I would just run the ultra to 25-35000km depending on how daring you are and keep adding top up oil. Try to get a pail of something for sale cheap and decant that as you please. When you change the filter dump the oil to try to get any junk out of the pan. I would go as thick an oil as I could due to high rpm use.


03 Jetta AWP/09A 205k kms
Edge 0W40 + Mann 719/30
Re: suggestions for a high mileage commuter? [Re: oil_burner] #4698685
03/18/18 01:04 PM
03/18/18 01:04 PM
Joined: Jun 2015
Posts: 308
montreal ,canada
madeej11 Offline
madeej11  Offline
Joined: Jun 2015
Posts: 308
montreal ,canada
I would go with a 5w30 HM synblend that you can pick up on sale and stock up on it. Since you're adding a litre every 2,000 miles go with a long life filter, Fram Ultra and use it to it's max. 20,000 miles.I don't see a need for ever doing a complete oil change. Good luck.

Re: suggestions for a high mileage commuter? [Re: maxdustington] #4698689
03/18/18 01:08 PM
03/18/18 01:08 PM
Joined: Feb 2009
Posts: 1,589
wv
krismoriah72 Online content
krismoriah72  Online Content
Joined: Feb 2009
Posts: 1,589
wv
If it were mine I would do 5K oil changes with 5w30 Walmart dino oil and filter. Or whatever is cheapest in your area.

These cars are used for new york taxis and you should be able to get many more miles out of it.

I would take a peek at the plugs after burning that much oil.

Re: suggestions for a high mileage commuter? [Re: oil_burner] #4698690
03/18/18 01:08 PM
03/18/18 01:08 PM
Joined: Jan 2016
Posts: 849
NC
Vladiator Offline
Vladiator  Offline
Joined: Jan 2016
Posts: 849
NC


I do not know if you are able to get your hands on this in Canada, but I definitely would, in an oil burner. 5 gallon pail of 5w30 synthetic blend oil. What I would do is save a random clean container for "top-up" oil to keep in the vehicle (even a 2L Coke bottle will do), if I am away from garage for a while, and simply refill with oil from 5 gallon pail as needed. This task is super easy with a pump made specifically for these pails.

Re: suggestions for a high mileage commuter? [Re: oil_burner] #4698728
03/18/18 01:56 PM
03/18/18 01:56 PM
Joined: Jan 2009
Posts: 459
Georgia
macarose Offline
macarose  Offline
Joined: Jan 2009
Posts: 459
Georgia
A few things...

Oil and air filter should be changed per OEM specs... especially if you're to the point where you're getting a bit of blow-by.

The 1.5L thrives on 10k full synthetic oil changes. Just do that and get whatever rebate offers the best discount. Since you're burning a quart every two k I would just top off the oil after every gas fill-up and use that as an opportunity to keep track of the other fluids as well.

That 1.5 Liter is dirt cheap to replace and since you're in Canada, you probably don't have much battery degradation, especially since you drive it so much and so often. I would just keep the fluids fresh and topped off and keep it running on Toyota's maintenance schedul. Chances are the electrical system will go before the engine or tranny need to be replaced.

All the best

Steven Lang

Last edited by macarose; 03/18/18 01:57 PM.
Re: suggestions for a high mileage commuter? [Re: oil_burner] #4698747
03/18/18 02:17 PM
03/18/18 02:17 PM
Joined: Mar 2004
Posts: 21,131
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 21,131
Upstate NY
Well first I would not believe what prior owner told you unless you see receipts or he was trusted friend.

Your issue is likely oil control ring crudded up. Consider Kreen or Auto-Rx or piston soak. I doubt valve stem seals are causing all of the oil burning issues. Compresion test?

I would run a synthetic blend (sale oil) at 6000 to 7500 miles. Change the filter every time.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: suggestions for a high mileage commuter? [Re: oil_burner] #4698789
03/18/18 03:04 PM
03/18/18 03:04 PM
Joined: Dec 2004
Posts: 310
Greenville SC
George Bynum Offline
George Bynum  Offline
Joined: Dec 2004
Posts: 310
Greenville SC
Let's pretend like it is 1960 ... add a can of STP at every change, and a can with each quart of oil added ... <BIG grin>

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