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Will 5w-30 oil hurt the 6s 3.0L engine that is stated to be used with 5w-20 oil? I only ask as my bud has 6 quarts left over unused that he'll give me for free and well, free beats 65 bucks lol. So if 5w-30 won't hurt my engine even in Tx i'll just use that and save my $ for clear side markers
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