Jervois Station

Still listed as a Roadhouse. Give them a ring and ask. (08) 8956 6307

I would have thought you would have checked on their website. http://www.macdonnellranges.com/Jervois-visitors-information-guide.htm

We stayed there in mid 2017. I did notice a diesel pump but you do need to call them to check on availability. Camping facilities are very basic with a male toilet and shower and a female toilet and shower. You do need to be quick in the morning if there are many campers staying as the facilities are very limited. If travelling from Boulia it is a more convenient stop rather than Tobermory Station as it takes you closer to Alice Springs. Tobermory does, however have better facilities.
The main road from Boulia is fine in Queensland but in the NT it was less than ideal. I felt that it had not been graded since we last travelled the road in 2016. Nevertheless a considerable amount of roadwork is occurring east of Gemtree. Gemtree is highly recommended as they do a brilliant camp dinner for about $20 per head. Very good facilities as well.

Doug,
I too filled up there for the Hay.
Fuel filter light came on shortly after. Replaced my filter and all was good, so it may just have been the filter's last straw.
But it may pay to just check it out in a jerry or use a filter, as it is the last fuel you will have and you don't want to get stuck halfway between Poeppel corner and Battlecamp
Enjoy that special part of our red country; The dunes were more red on the Hay than in the Simpson.