Hi, 2 days ago I purchased a '09 Mx5 from a dealer. When I test drove it around the block, all seemed fine. On driving home on the motorway, I was a bit alarmed to see that the oil pressure needle went up to 3 increments from H, then when slowing down, went to 3 increments above L. When my Mk2 did that once, it needed oil. It seems to fluctate quite a bit between these two points. I phoned the dealer and another local MX5 dealer and they thought it was normal due to the pump working harder at higher revs. Sounds plausible but can anyone tell me why does this car does that and no other car I know of does please? It also goes to H when I first start off at very slow speed. Does anyone else's do that??