HUDY 106441 Premium Silicone Oil at 4000 cSt is formulated for accurate differential tuning. Produced in Europe and quality checked, it gives stable viscosity that helps keep diff performance consistent across runs.
This 4000 cSt grade suits diff assemblies that need a medium-thick fluid to control slip and transfer power smoothly. It helps balance traction and driveline response for both practice sessions and club racing.
The bottles use clear colour markers so you can spot the viscosity quickly in a busy pit box. The 100ml size is handy for repeated refills and workshop use without frequent repurchase.
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