I have noticed that it is very temperature sensitive,below a certain temperature it sounds like a Diesel ,nigh on all day,but on a warm day like yesterday which was around 15 degrees it was noisy on initial start up but this decreased after a few miles until it was barely audible,but around 10 degrees it is very noisy most of the time,so I have concluded it is due to the oil viscosity and decided to stop worrying about it.Also I have complained (on here) about the ride being hard,and I have noticed I get a (marginally) better ride on a warm day.I was wondering if the fluid (or gas) in the shockers may be more fluid when warm and this would account for it.Any thoughts ...