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Old 06-22-2018, 01:47 PM   #1
Toasterdon
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Default 2007 Ion engine sludge?

Hi all,

A new mechanic is telling me that our 2007 Ion has sludge in the oil filter. He wants to do a 150.00 service to flush the oil system and put a "stabilizer" in the new oil.

The car has 95K miles, has been well cared for, regular oil changes, driven 40 miles a day and runs at normal temperature.

Doesn't sound right to me.

Your thoughts?

thanks

Don

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Old 06-22-2018, 07:43 PM   #2
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Default Re: 2007 Ion engine sludge?

Did this mechanic show you oil removed from your engine and oil filter to show evidence of sludge? I never use repair shops but a wheel bearing and lower control arm failure, lack of access to a press capable of pressing out wheel bearings forced me to one. I was surprised to find the two worn parts on the counter when I went in to pay the bill. I used this shop before, when I bought new rims and tires to have them mounted and balanced. A very good two bay shop.

You may be the first here to mention any shop suggesting an engine flush of the oil system. I've never heard of this. Usually when a regular oil change is performed, oil filters trap all engine blowby gases that turns oil dark. The filter replacement allows the engine to pump fresh filtered oil around, drip back into the oil pan and drawn back into the pump before pumped thru the filter, trapping all debris. If there's any serious concerns about sludge collecting on the filter, the shop should have retained it to show you. Regular oil and filter changes are all that's necessary for the majority of daily drivers.

Stabilizer may be nothing more than oil additive. If your engine is showing signs of excessive wear, misfiring, exhaust smoke, etc, chemicals aren't gong to stabilize abnormal wear. Most descriptions at this point are termed band aids to serious engine problems.

Last edited by fdryer; 06-22-2018 at 07:50 PM..

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Old 06-23-2018, 12:33 PM   #3
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Default Re: 2007 Ion engine sludge?

Where in SoCal are you located, Toasterdon?

Quote:
Originally Posted by Toasterdon View Post
Hi all,

A new mechanic is telling me that our 2007 Ion has sludge in the oil filter. He wants to do a 150.00 service to flush the oil system and put a "stabilizer" in the new oil.
To the best of my knowledge, no auto manufacturer recommends an engine flush. GM doesn't endorse that service. Lucas used to advertise an oil stabilizer many years ago. There are additives which are viscosity improvers having other properties as well.

Quote:
Originally Posted by Toasterdon View Post
The car has 95K miles, has been well cared for, regular oil changes, driven 40 miles a day and runs at normal temperature.
If this has been your habit then you've done what's necessary to maintain the engine properly as fdryer pointed out. I agree that if indeed there was a sludge issue you should have been offered proof of it. Anyone can say anything at any time to cause us to be separated from our money needlessly (except to their benefit, of course). Based on what you've posted here you don't need any oil additive at all. BTW, what is the typical mileage interval between oil changes?

Quote:
Originally Posted by Toasterdon View Post
Doesn't sound right to me.
I agree with you. It isn't right at all.

Quote:
Originally Posted by Toasterdon View Post
Your thoughts?
If you're recommended such a service as this at any time in the future ask for physical evidence to support it. If only more talk is offered then politely decline such a maintenance service and happily go on your way. Lastly, I find the price of that service ridiculously high.

...
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Gov't's grown bigger, but a chance exists that it will be reduced. I'm cautiously hopeful.

Last edited by pierrot; 06-23-2018 at 12:39 PM..

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Old 06-23-2018, 03:17 PM   #4
Toasterdon
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Default Re: 2007 Ion engine sludge?

Thanks guys,

I decided not to get this service. Our regular mechanic said they were upselling us, and GM recommends against doing these flushes.

The shop normally does good work, but things may be getting tight for them and they may be looking to increase profit margins with this service. None for me.

Thanks again.

Toasterdon.

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