motor oil

Tadams said

What do you guys recommend for weight and brand of motor oil for my 65 barracuda. The book says 10w30 or 10w40. Central N.Carolina has some cold winter weather but not normally sustained cold below the 20 degree mark. I thought I would change it this weekend.
thanks

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I'll assume your engine isn't brand spanking new.

Any quality oil is fine for use. The weight of oil has a play in the extremes temps of heat and cold. I know I seen a chart on how the weights play a roll. However, a 10-30 I do beileve is fine till approx. 20*'s.

Look for the charts and recomendations as per the oil company your useing.

Here in New York, I'll use 10-30 in the winter.

For WIW, if your not leaking oil or burning it up, use synthectic.