I am still having a dim oil light on my '85. It seriously isnt as bad
as it was when i first bought the van. First thing i did when i bought
it was change the oil with 20W-50 and filter to a Bosch filter (all
they had). I know this is tabboo, but could this cause my light? I
already explored bad grounding to the dash, bad grounding in general,
and bad grounding to the fusebox. Any ideas?

-Craig
'85GL