Sorry everyone another "Oil pressure" question

[ordwood]

So I have a 4.0L Speed Six in a Cerbera and have always been a little concerned about low oil pressure when the engine is hot and just ticking over so at the last service I had the oil changed from the Mobil 1 0W-40 to a fully synthetic 10W-40 which was suggested would help the problem.

Well after a few months driving I'm still a little concerned so wanted to ask everyone's advice as to what it normal.

So here's some of the data I've managed to copy down.

Starting from cold 53psi at 800 rpm
30mph. 26psi at 1400rpm and temp 77deg
40mph. 30psi at 1500rpm and temp 79deg
50mph. 42psi at 1800 rpm and temp 77deg
60mph. 47psi at 2500rpm and temp 77deg
70mph. 50psi at 3000rpm and temp 78deg

But here's the troubling one:
Stationary 12psi at 800rpm and temp 80deg

Now if this is normal (I sincerely hope it is) then I can stop worrying so if anyone can give me some input from their own experience I'd really appreciate it.

Many thanks in advance

[ordwood]

m4tti said:

It's the nature of the head design. Replace the head and it goes away...

1k idle... 93 c oil temp

Replace the head with what ?

An FFF one or perhaps an Ls lump ;-)

[ordwood]

Thanks Guys, you've made me feel a lot happier.
Will still keep an eye on it but doesn't sound like I have anything to worry about, well at the moment.
Cheers