Should be at 5 bar at start up and when driving. 2 bar or a little lower at idle. I change the weight of your oil before doing anything else. Also make sure the gauge is working correctly. Are you using the correct Mann or Mahle geman oil filter?
'93 S4 oil pressure
What is the acceptable oil pressure range for my engine. When cold it's at 3.5 bar. At operating temp(at idle) it's as low as .5 bar. Is this normal? I got the S4 with 100,500 miles back in 2008. The previous owner changed the oil(conventional 10w-30) every 6000 miles. I've driven it 15k miles over the past 5 years and kept the same oil change schedule. Could the oil pump be going bad or is it possible that I've got leaking injectors?
thanks in advance
thanks in advance
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