Just topped up my valver with oil this morning as it has done about 1k miles since last top up which is about right. Noticed that now once the car has warmed up at idle the oil pressure gauge needle is only just off the stop at the bottom of the gauge. when driving the presuure builds up and drops off as normal. the best bit, when I open the fans and turn them on I get a lovely burning oil smell blown in my face (no i didnt spill oil all over the place when topping up ). there is no obvious leaks or puddles on the floor. could it be the rings? how much is this to get fixed? and most importantly Im going on a 2hr (motorway) drive this friday, as long as I keep an eye on the oil level would this be ok??