[GMcL]

Interesting thread, I'm glad I came across it as the rear shocks on my P3 S60 have corrosion though not leaking. The car is 13 years old now with 100,000 miles so probably overdue for shocks and springs including mounts.

Wrt poly bushes I had a P2 S60 D5,. The standard oil filled bushes combined with Pirelli P6000 tyres had the car tramlining horribly. I replaced the suspension bushes but left the engine mounts alone, I was advised the vibration would be a step too far if I changed those. With the new bushes and Good Year tyres really tightened up the steering and completely removed the tramlining. I ran that car up to 96,000 miles before swapping to the P3 car with no front suspension bush issues.