coolant change and oil pressure increase..odd

[andyg plym]

Bit of a funny one this, i had a leak in the blanked off aux rad hose so thought it best to sort out and at the same time get some anti freeze in there.

so, pulled off the bottom hose and watched the merky water pee out, then went through 3 large watering cans flushing the system through, sorted the hose and reconnected the bottom hose,followed by adding 3 litres of antifreeze and water...lovely.

I then bleed the system like you do and ran upto temperature.
Now interestingly oil pressure has increased on the gauge from 1.2 to 1.5 bar

Now before I end up starting another debate on "oil pressure should show 1.8 to 2 bar" i will just remind peeps about the factory 2000 rpm test i was advised. My gauge has read low for years, but never drops....run it upto 2000rpm and it reads 4bar.

My question here is about a good system flush, can it increase oil pressure? I thought not but now my gauge shows 1.5 bar (still 4bar on 2k)

[rynaqui]

Isn't that a good sign that the engine is warming properly so you are getting a more stable oil pressure reading? I'm sure someone with lots of experience can shed more light on this.

Another thread where there will be much to learn from the other forum members on here though

[andyg plym]

yes don't get me wrong- it is positive!! Just to confirm when I say running temperature I do mean 90-92 on the temp gauge with the fan kicking in, yes I appreciate it depends on the outside temps etc but we have had a mixture of freezing and quite mild conditions

[fourringsrus]

Any possibility that its a coincidence and maybe a dicky gauge?

[andyg plym]

I suppose there is a chance yes but it's strange how it instantly changed