My dashboard oil pressure gauge (2000 Silverado 5.3 86,000 miles) shows
60-70 when I drive it on the freeway at about 60-65 mph. On a friends car, new Tahoe only 15,000 miles, it's usually at 40 or so.Is this something I should be worried about? It's been a while since I changed the oil, would that help?
Thanks
J