I know this is a stupid question but does the computer display the oil life readout the same when using full synthetic verses regular oil? I switched to full synthetic a couple thousand miles ago and my oil life was recently at 9%, so I changed it. I changed it basically because I used mobil1 synthetic but then read that it does not meet approved specs. If synthetic is meant to last 5000 or more, do I just reset the oil life readout a couple times till I hit the actual oil recommended change mileage? I was worried maybe the computer could actually record the workaround and raise red flags when none are warranted? what is the proper method.