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Ask Mobil Archive -
Switching to Synthetic from Conventional
DateQuestionAnswer
04/13/2009
How Far Can Oil Drains be Extended with Mobil 1?
I have a 2006 Chevy Trailblazer that I use for work. I put over 40,000 miles on it per year with all types of driving. I currently change the oil every 3,000 miles using quality mineral oils. I am int...
With Mobil 1 oil you can easily go between 7,500 and 10,000 miles depending on your driving conditions. We recommend that you start increasing the ODI gradually. You are the reason we created Mobil 1 ...
04/06/2009
What Will Happen Switching From Synthetic Motor Oil to Conventional Oil
I have been in the mechanic business for 8 years and was always taught that you cannot go back to conventional oil from synthetic oil. I have seen the damage caused by going back to conventional. Is i...
Synthetic oils will provide better protection than conventional oils, but switching back and forth between full synthetic and conventional oil will not damage the engine. Of course, this depends on th...
09/26/2008
Does Valve Train Noise Increase When Synthetic Motor Oil Is Used?
I notice that with synthetic oil I have more valve train noise. I switched back to conventional for a change and the noise was indeed reduced. Is it fair to attribute this change to synthetics vs conv...
If you are comparing the same viscosity, then we would not expect additional noise in the valve train when using a synthetic product.
09/23/2008
Are All Synthetic Motor Oil Brands the Same?
I have two questions. I want to change to synthetic oil.  Are all major brands of synthetics the same? I can't find the change interval for Mobil 1 synthetic. Thanks.
All major synthetic brands are not the same; you can expect formulations to differ from one to another.  We would recommend going with the synthetic motor oil that meets the specifications noted in yo...
07/17/2007
Did Switching from Synthetic to Conventional Oil Contribute to Engine Stalling and Hard Starts?
Does switching from synthetic oil back to conventional oil cause any engine problems? I switched my last used car to a high-mileage synthetic when I got it and it ran fine. But one of the next times I...
It is unlikely that your problem as described was oil related. Certainly hard starting/cranking in cold weather could be impacted by using switching oils especially if they were different viscosities....
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