I got some chain oil in an aerosol can, starts as an oily foam. I relied on it to seep into the gaps, and it seemed that the ride improved and the squeaks reduced - but squeak is still there and must be because I couldn't reach the back bit of the spring and didn't,t fancy dismantling the body shell. The 4/4 sport doesn't make it easy to get into the back passages.
But, I wondered if it's the shock absorber that's squeaking?
By the way, when I tested it I could smell the oversprayed oil cooking on the exhaust pipe. I thought it prudent to stay above 60 mph to keep the flames at bay - so that was a good test of the springs on the country roads. Ended up quite a long way from home.
