Does anybody know if this is indicitive of a possible sensor problem or more likely a clogged inlet strainer problem... and yes Ive been using 10W40 dino oil and changing every 5 k with no problems .....until now. 218000 km on odometer / dont have an oil pressure gauge to check actual pressure / looking for easiest and cheapest solution. What's easier changing oil pressure sensor or dropping pan and checking strainer ? and remember its quite cold outside up here in Canada and I have to do it all in the driveway. What is the easiest way to get the sensor out ? doesnt seem to be much space to work on it. Any advice other than to take it to a mechanic ?