I have an 05 MCS. just bought it a couple weeks ago. It has the gauge pack with the oil pressure and oil temperature gauges. at idle its only reading around 7 PSI, at cruising it is around 45 PSI, and goes up a little higher under acceleration. the low oil light has never turned on but I'm thinking that 7 PSI is way lower than it should be. sorry if this has already been discussed. I spent the past few hours searching and couldn't find any answers. any help would be appreciated.

Thanks

 

Sounds a little low to me but cars run very light oil these days so it might be ok. Could be the gauge.

 

I put a gauge in mine. Those numbers are normal. No worries dude!

 

The oil pressure on my 2003 MCS and 2006 MCS has always run very low at idle with hot oil. I think the light does not come on until around 3-5 psi. I would not worry about 7 psi at idle. Your cruising oil pressure seems fine.