have u changed the oil filter too?
Also get it check other oils like, brake oil, PSF power steering fluid, Gear oil etc.
oil pressure majorly drops because of low quantity of oil, so check and top up some oil somewhere.
hello my Peugeot engine light on had i had taken it to the mechanic but he cannot find problem, is it so serious that i need to take it to the dealer or it is safe to drive the light comes and goes 308 is it safe to drive long distance
please advice