It was quick and to the point on technical skills. I recommend studying a lot more and preparing your engineering knowledge beyond fundamentals. Overall, not a bad experience if you find yourself fully prepared.
The following metrics were computed from 5 interview experiences for the SpaceX Fluids Engineer role.
SpaceX's interview process for their Fluids Engineer roles is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for SpaceX's Fluids Engineer interview process.