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Originally Posted by chronofurb
I have a 92 s10 blazer 4x4 with 111k miles on it, just wondering what type of oil I should use, the owners manual says to use 5W-30, but I was wondering since it has good bit of miles on it I should use a different weight, my friend recommended 10W-30
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I have 160K on my 99 and run Castrol GTX 5W-30, with an AC-Delco filter, live in Wisconsin, and have had great luck with this combination.