I have a 2011 avalanche, my oil gauge is fluctuating between about 25 and 40 mostly reads 40 when in lower gear, it's also running like it's losing power when the gauge reads lower, my battery gauge has also began to lower during a steady drive on hwy, I'm baffled at both gauges doing this, was wondering if anyone knows what might be the cause of this, I also have the proper oil level and recent oil change but this might have been going on for two or three months I only drive my truck on the weekends, I went on a recent trip and thought I might not make it back but I did so it's to the garage I guess for sure.
