Mobil 1 extended service oil

SouthArk370Z · 04-25-2016, 10:11 PM

Quote:

Originally Posted by Darwins Child

... If contamination of the new oil during the winter in which the car is not operated is of concern, one could in the fall drain the old oil for a few days, remove the old filter and install the new filter and plug Then just wait until the beginning of the driving season to remove the plug to drain any old oil that slowly dripped down over the months, reinstall the plug and pour in the new oil.

Then you're sitting there with undiluted "bad" oil on all the parts all Winter.

Yes, one can get away with longer than 6 months oil changes. Between the materials used in newer engines and the great advances made in lubrication, corrosion is not as big of a deal as it used to be. BUT ... neither materials nor oils are perfect and there will be a significant amount of corrosion if you don't change the oil often.
In your situation, changing your oil at one year intervals probably won't do enough harm to really worry about. But why take a chance? Oil and filter aren't that expensive. As someone said before, it's cheap insurance.

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