When I first picked up my 85 we came home on a hot day.  Wehn we pulled up to the tole booth the oil light came on.  We pulled over and read the owners manual.  It said after prolonged driving it  the oil light might come on at idle.  If it goes away when you excelarate it is ok.

So, that is what would happen and all was ok.  This never  happened again though I did change from 20 50 regular oil to 15 50 Mobil 1 so that might have helped. 

I’m sure others will have better info but I thought I’d share my similar experience.

Eric Caron 
85 GL Auto Westfalia 

> On Oct 1, 2017, at 2:19 PM, jed batchelder <seabeejed@HOTMAIL.COM> wrote:
> 
> i have a 1983.5 vanagon i recently went on a camping trip and everything was fine till i got back to town.  when i would hit a light and be stopped my oil pressure light would flicker.  it will go out as soon as i hit the gas a bit or start driving.  i do have a new oil sensor in there and i do have good oil level...  so what does this mean?  i do have a new o2 sensor and other than that the engine sounds and runs great.