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Which engine oil should I use in my 91 Silverado?

  

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Hey Scotty, I just bought an 91 Silverado. I bought it as a knock around vehicle... Everything I've found online says the oil weight is 5w 30. Should I stick with that weight? I'm currently running Amazons synthetic oil in my 14 charger and 19 pilot. Should I use a synthetic, high mileage or regular conventional oil for the truck. Is there anything else I should do immediately? Thanks in advance 


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it's a knockaround so don't overthink it. Just use any 5w30 and change regularly.


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