Hi guys, Just experienced what the title says. Apparently when I put my hvac blower on Max (position 4) the oil pressure gauge reads 0.5 Bar less than if it is on position 0. I’ve been testing during the trip. A/C compressor on or off doesn’t affect the reading, it’s just the blower. Let’s say I’m cruising at constant 3000 rpm with blower off, the oil pressure gauge reads 5 bar (middle of the gauge). Turn the blower to position 4 and oil pressure drops to 4.5 Bar. Turn the blower back to 0 and the gauge slowly starts creeping back to 5 bar again. Position 1 2 and 3 also affect the gauge reading but less. I’m not really good at electronics but any idea where to start checking or what does the hvac have to do with the oil pressure gauge??? Thanks!