can I add 5W-30 synthetic motor oil to 5W-30 regular motor oil already in the car

Asked by fivejakes Sep 03, 2014 at 06:55 PM

Question type: Maintenance & Repair

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tennisshoes answered 2 years ago

In a pinch you can add 1quart to convential oil without any problem.

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can I add 5W-30 synthetic motor oil to 5W-30 regular motor oil already in the car

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