Very light steering when driving over 50mph, changed tyres to Dunlop sp1 v rated, ( directional ones ), all shocks changed, complete set of poly bushes fitted. The car is RS2000 4x4 ( MKVI), did wonder if wrong fluid been put in for power steering ?, no noises, clunks or anything else. This seems odd, taken into two garages and they say nothing wrong..... any ideas.