Dealer uses regular (wrong) oil
Instructor
Joined: Oct 2013
Posts: 908
Likes: 59
From: Lincon, CA
so you're contradicting the people at Mobil 1?
http://www.mobiloil.com/USA-English/...Frequency.aspx
quote: Since one of the key engine oil tasks is to keep internal components clean and free from varnish and harmful deposits, when the oil is drained, the contaminants are removed with it, so it is normal for the oil to be black as it comes out of the engine and it may still conserve its properties even if the color of the oil is black.
http://www.mobiloil.com/USA-English/...Motor_Oil.aspx
quote: Motor oils contain detergent and dispersant additives that suspend contaminants and combustion by-products. This can be the reason why the oil may look dirty or black, meaning the oil is doing its job.
http://www.mobiloil.com/USA-English/...Frequency.aspx
quote: Since one of the key engine oil tasks is to keep internal components clean and free from varnish and harmful deposits, when the oil is drained, the contaminants are removed with it, so it is normal for the oil to be black as it comes out of the engine and it may still conserve its properties even if the color of the oil is black.
http://www.mobiloil.com/USA-English/...Motor_Oil.aspx
quote: Motor oils contain detergent and dispersant additives that suspend contaminants and combustion by-products. This can be the reason why the oil may look dirty or black, meaning the oil is doing its job.
Ray A.
Lead Lap
Joined: Sep 2009
Posts: 462
Likes: 4
From: NV
It should not be a problem if they change it to the right oil immediately.
If you did not change the oil it could be a problem. If you use 10w30 during breakin, the piston rings may not seat properly. The result is that the engine may burn oil more than normal. We are having this problem with the Subaru Outback at the moment.
If you did not change the oil it could be a problem. If you use 10w30 during breakin, the piston rings may not seat properly. The result is that the engine may burn oil more than normal. We are having this problem with the Subaru Outback at the moment.
Lexus Champion
Joined: Feb 2004
Posts: 1,973
Likes: 55
From: Ohio
The synthetic oil comes out as dark amber after about 7-8K miles of use in both of my Lexuses.
Synthetic will stick to the surface, while dyno will roll right off. So, technically, you could say which oil was used just by looking at the dipstick.
I would say, replace the oil after 5K and call it a day. It is not worth spending $30 for oil analysis if the oil itself will cost almost as much.
Synthetic will stick to the surface, while dyno will roll right off. So, technically, you could say which oil was used just by looking at the dipstick.
I would say, replace the oil after 5K and call it a day. It is not worth spending $30 for oil analysis if the oil itself will cost almost as much.
Instructor
Joined: Oct 2013
Posts: 908
Likes: 59
From: Lincon, CA
The synthetic oil comes out as dark amber after about 7-8K miles of use in both of my Lexuses.
Synthetic will stick to the surface, while dyno will roll right off. So, technically, you could say which oil was used just by looking at the dipstick.
I would say, replace the oil after 5K and call it a day. It is not worth spending $30 for oil analysis if the oil itself will cost almost as much.
Synthetic will stick to the surface, while dyno will roll right off. So, technically, you could say which oil was used just by looking at the dipstick.
I would say, replace the oil after 5K and call it a day. It is not worth spending $30 for oil analysis if the oil itself will cost almost as much.
Ray A.
Last edited by raylor4; May 27, 2014 at 02:15 PM. Reason: Clarity.
Lexus Champion
Joined: Feb 2004
Posts: 1,973
Likes: 55
From: Ohio
It should not be a problem if they change it to the right oil immediately.
If you did not change the oil it could be a problem. If you use 10w30 during breakin, the piston rings may not seat properly. The result is that the engine may burn oil more than normal. We are having this problem with the Subaru Outback at the moment.
If you did not change the oil it could be a problem. If you use 10w30 during breakin, the piston rings may not seat properly. The result is that the engine may burn oil more than normal. We are having this problem with the Subaru Outback at the moment.
A coworker of mine blown the engine on his Forester because he wasn't keeping an eye on the oil level. He was very surprised to learn, no such procedure is required if you drive a Toyota.
One of my friends is absolutely certain his GF's Forester burns oil because of using 0W20 from the get-go.
If anything, dyno oil has been recommended for the break-in process. 10w30 is good oil to use in warm climates.
Last edited by vlad_a; May 29, 2014 at 07:36 AM.
Racer
Joined: Nov 2009
Posts: 1,567
Likes: 87
From: NJ
Subaru flats burn oil. That's a fact. Subaru people attribute it to improper break-in process. Their favorite oil, is thicker Rotella T6 5W40.
A coworker of mine blown the engine on his Forester because he wasn't keeping an eye on the oil level. He was very surprised to learn, no such procedure is required if you drive a Toyota.
One of my friends is absolutely certain his GF's Forester burns oil because of using 0W20 from the get-go.
If anything, dyno oil has been recommended for the break-in process. 10w30 is good oil to use in warm climates.
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