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#1 (permalink) Old 11-09-2011, 03:15 PM
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Best oil for oil burning 2007 I4?

My 2007 I4 has abruptly started using oil. I have been using Motorcraft semi-synthetic 5-20 the last several changes, which is made by Conoco, and considered a good buy as it has a large synthetic component, but sells for dino prices. I'm not a believer in synthetic but don't mind it if it doesn't cost me more.

I won't be able to get to the dealer for a while, and need to do an oil change, so Iam wondering if I might improve oil mileage by going to a 5-30, or even 15-something.
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#2 (permalink) Old 11-09-2011, 03:25 PM
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How much oil? How many miles? If it exceeds what Toyota deems is "normal" then you may have a case. Were it mine I would switch to a regular (or high mileage depending on your miles) 5W30 and monitor the consumption. It seems that high oil consumption is common with the 2.4l engine as mileage accumulates from what I have read on this forum.

One example: Burning Oil

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#3 (permalink) Old 11-10-2011, 02:09 AM
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Was there any event associated with the abrupt beginning of the oil burning?

And how abrupt?

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#4 (permalink) Old 11-10-2011, 09:00 AM
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No event, its very odd since everything seems to be fine and there is no sign of leakage, fouling plugs or other things I associate with elevated oil consumption. Can't pinpoint the time, I was not driving the car for a couple months due to medical issues but my wife was driving it regularly.

And consumption is not above what Toyota allows (not that iot really matters as the car is not under warranty anymore). Toyota says a quart per thousand miles is still OK. But while adding 1/2 quart or so ever other gas fill may be OK with Toyota it gives me the creeps.


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Was there any event associated with the abrupt beginning of the oil burning?

And how abrupt?
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#5 (permalink) Old 11-10-2011, 10:33 AM
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Sometimes going to a heavier weight oil may help. I was having to add some oil between changes on a BMW using the specified 5-30W synthetic. I starting using Mobil 1 0-40W synthetic and it made a difference.

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#6 (permalink) Old 11-10-2011, 10:59 AM
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Either clogged PCV, oil rings are stuck, or one of the rings broken. Change the PCV, and consider MMO or Kreen piston soak (google for those and you will see what it means).
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#7 (permalink) Old 11-10-2011, 11:50 AM
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Sometimes going to a heavier weight oil may help. I was having to add some oil between changes on a BMW using the specified 5-30W synthetic. I starting using Mobil 10-40W synthetic and it made a difference.
Agreed, 10W-30 or 10W-40. That's all we had 10 years ago - well, maybe 20.
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#8 (permalink) Old 11-10-2011, 03:15 PM
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Yikes, an 07 I4 is what I have....I should keep an eye on this in case.
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#9 (permalink) Old 11-12-2011, 08:38 AM
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Not sure, but does the I4 need the oil line replaced as the V6 does?
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#10 (permalink) Old 11-12-2011, 11:00 AM
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I've heard there is some help with using Lucasoil Heavy Duty Oil Stabilizer, if the problem is valve seals.

Step up to 5w30 in a high mileage formulation as well.

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