Originally Posted by ramblin.ruby
- is it normal for the the oil pressure gauge to fluctuate (ie go up when climbing big hills or accelerating)? I haven't driven a diesel long enough to know where my gauges should hang out. Anyone care to weigh in?
Yes. as the rpms increase the oil pressure will rise, at idle it will be lower. When it is cold, less then 30F, it will be WAY up at the top of the gauge until the oil heats up. That is normal. If the gauge is vibrating a little bit that is normal, but you can get better gauges.