Fluid Temp Effect On Damping
Here is a little test I ran using 2.5, 5 & 10wt suspension fluids at 70 deg F and 200 deg F.
When I revalve a shock or set of forks I prefer to go with the lightest viscosity fluid I can, As you can see the 2.5wt fluid at 70 & 200 deg F is only .1 lbf-s/in apart at the two temps. Now let's go with the 10wt fluid, The 10wt at the two temps is 2.75 apart. So what am I trying to show here? Simple the lower viscosity fluid will perform more consistently than the 5 or 10wt fluid. When valved correctly for the lower viscosity fluid you will not notice as much of a change as the day heats up or cools down. Aren't we all after a suspension that remains consistent throughout the day?