On a trip down to the Great Ocean Road over Christmas, I noticed that on some of the longer highway stretches towards the Vic border, the oil pressure would climb into the red for a while. It seemed that if I loaded the engine a bit, it would drop a little. If I gave it a few bursts of acceleration, it would drop back down to what I consider "normal" - one notch below red. Apart from this, everything seemed to be working fine.
I thought this was odd because :
* it hasn't done this before in similiar conditions
* it had a service around 500km before the trip
* I'm using the same type of oil as ever
The only thing that has changed was a new oil filter with the service. Apart from that, it's got me beat. Has anyone experienced this kind of thing? It's not really a major concern as I'm back to regular conditions (traffic, stop-start, etc), but it's got me thinking.. /:-|