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I currently am at 38,500 mi. and when I first got my car the original owner used 10W30 , but the factory recommends 5W30. So at my mileage now is it best I stick with the 10w30 or go with the 5w30 on my next oil change. And a few ppl told me to never use 5w30 once I hit high mileage like 70k is this true ?
 

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I know I have never had a problem running 5w30 in any of my high mileage cars. You really can use either one you're not going to see any big benefit or problems using either one. I use 5w30 in mine and im at just under 90k. And i've had a couple of cars over 150,000 miles on them and ran 5w30 fine. If you do have a leak in the motor somewhere yes it will find it easier than 10w30 like my Eclipse but than that helps you find the leak and fix it.
 

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yo dude, yeah 5w30 for the life of the car. 10w30 on stock engines is typically for harsh weather locations. Houston, be it strange unpredictable, is not harsh. I used 5w30 Synthetic on the stock motor till I pulled it at 130K....no problems what so ever.

At the same time, your milage is VERY low, engine probably hasn't even broken in completely yet. I would just switch to 5w30 synthetic and stick to that.
 
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