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post #1 of 10 (permalink) Old 05-31-2011, 07:48 PM Thread Starter
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Default scion tc motor oil?

I`ve toyota scion tc 2007, vin starts from JTK. I always used fully synthetic motor oil.
The previous one was 5W-40 full synthetic.

Today on the service the mechanic changed it to Toyota Genuine Motor Oil API SM 5W-30. I found that is a semi-synthetic. And Toyota recommends 5W-20 or OW-20.

Should I change that oil again? Or can use this one?

May be it`s better to wash the engine first? I also worry that the hot summer is coming and probably SM 5W-30 doesn`t work for hot weather?
What can you recommends?

I love this car and want to make the best for it.
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post #2 of 10 (permalink) Old 06-01-2011, 06:54 AM
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2007 tC's ue 5w-20, as listed in the owners manual

Whoever did your oil change at Toyota needs to jump off a bridge, because he/she should have known the proper weight oil to use on your vehicle. Take the car back and tell them to do it right. The only real difference between w30 or w20, besides viscosity, is their temperature tolerances.

5w-30 will work perfectly fine in the summer as it has a higher temperature rating as opposed to 5w-20. But, always use the oil recommended in the owners manual. Each manufacturer test their engines extensively and in tight tolerances. So if it says use a specific weight then use it.

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post #3 of 10 (permalink) Old 05-06-2013, 12:23 PM
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It`s time to change my motor oil again.
On the athorithed service I can get toyota genuine oil 5w-30 or 5w-40.
The recommended toyota genuine oil 5w-20 or 0w-20 isn`t available.

But I can get MOBIL 1 5W-20

or castrol edge professional a1 5w-20

What is the best for my scion tc 2007?
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post #4 of 10 (permalink) Old 05-06-2013, 05:06 PM
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They changed the spec for the 2007 oil AFTER the 2007 was out. So originally I believe it was said to run 5W-30.

Them changing from synthetic to semi synthetic is not a big deal. I would just put whatever back in that you normally run. I personally run Royal Purple in most of my cars.

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post #5 of 10 (permalink) Old 05-06-2013, 09:39 PM
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Yeah 100% the oil cap says 5W-30. Mine's a 2006 though.

Wonder why they made the switch...? Although there were some minute engine changes in 07 if I'm not mistaken.


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post #6 of 10 (permalink) Old 05-07-2013, 10:35 AM
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Thank you so much!
Are there a link for this switch? Just curious. Or can I see a manual online for this model?
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post #7 of 10 (permalink) Old 05-07-2013, 11:41 AM
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Seems that I`ve found it

Quote:
Oil grade: API grade SL "energy conserving". Recommended viscosity: SAE 5W-30. SAE 5W-30 is the best choice for good fuel economy, and good starting in cold weather. If SAE 5W-30 oil is not available, 10W-30 oil may be used. However, it should be replaced with SAE 5W-30 at the next oil change.
What engine oil grade should I use on my Scion vehicle?
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post #8 of 10 (permalink) Old 05-09-2013, 01:38 PM
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What is the best oil brand for my car -toyota genuine oil or Mobil 1?
Which one do you use?
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post #9 of 10 (permalink) Old 05-16-2013, 12:55 PM
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What about this type of oil?

Mobil 1 ESP Formula 5W-30 1?.

Is it suitable for my model?
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post #10 of 10 (permalink) Old 05-16-2013, 02:34 PM
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Any 5w-30 is fine. Synthetic is not generally worth it unless you are going for longer than standard oil change intervals.

There is no such thing as "best brand" as any oil meeting the SL requirements will do everything you need.

Many of us here use synthetic because it significantly exceeds the SL requirements, and some of us also go much longer than the standard oil change interval because synthetics are able to do this, but if you are not racing, towing, or using long oil change intervals, you're just wasting money with synthetic oils.

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