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What oil should I use?
My car is a 2006 Kia Rio LX with 26,500 miles on it. I drive about 24k miles a year, at least 75% being highway miles.
It says to use 5w20 oil in my manual. However, I heard that synthetic gets better gas mileage, is this true? Also, what's a good brand? I heard Amsoil is good. Should I stick with 5w20 or go down to 0w20 with the synthetic oil? Finally, how long should I go between oil changes?
Sorry for all the questions...
Thanks in advance!!
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