what happens if you put 10w30 oil in a car that needs 5w30?

Asked by Apr 17, 2013 at 01:00 AM about the 1999 Chevrolet Monte Carlo

Question type: Maintenance & Repair

My friend saw my oil light on so he put oil in my car for me but he bought 10w30 and my car needs 5w30.

5 Answers

92,105

Your oil is a little thicker when cold. No damage will happen.

6 out of 6 people think this is helpful.
92,105

Everything you ever wanted to know about oil and lots more --- http://www.bobistheoilguy.com/motor-oil-101/

6 out of 6 people think this is helpful.

It will mix.

3 out of 3 people think this is helpful.
6,595

it will be fine.. i've used 10w30 a lot.

1 out of 1 people think this is helpful.
85

The 5W and 10W defines how the oil will flow at 0 degrees. At operating temperature, there will be a completely insignificant difference between the two.

2 out of 2 people think this is helpful.

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