u/Healthy-Willow-7004

Just bought my first cat eye 3 weeks ago 2005 Chevy Silverado 5.3 with 147k miles and had the oil pressure low light come after a week of driving it, checked oil dipstick had oil, saw on google that at idle 20-30 psi at idle is normal but oil pressure low is on but need yall input for help? Saw on fb saying to use a heavier oil or sensor, Ik my odometer don’t work either got to tap it to turn on lol