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dbenj25

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  1. dbenj25
    New GM owner and member here (99 sierra 1500, 5.3). I recently changed my oil and now my oil pressure is a bit higher than normal. Idles around 55 when warm, 60ish on cold start, merging on the high way I'm in the 70's. Before the oil change I'd idle around 35 warm and merging I would get around 60 if I was on it. Any ideas what would cause this? Changed with ac delco filter p46e and mobile 1 5w30 high mileage.
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