Lubricating the upper isolator, jounce bumper and utilising the correct internal strut/shock oil will help reduce friction, noise, vibration, and harshness (NVH) in the suspension.
An upper isolator acts as a damping component at the top of the strut/shock mounting location to prevent irritating noise and vibration from transmitting through the chassis of the vehicle. The addition of a lubricant will allow elastomeric and metal components to slide against each other preventing ‘stick-slip’ noise. Choosing a grease with good water washout capability, elastomer compatibility, and wide temperature performance will be critical to prevent warranty returns – Fluorocarbon Gel 880
A jounce bumper provides the final shock absorption when the suspension experiences extreme compression from the vehicle hitting a large bump. The addition of a synthetic grease to the jounce bumper will prevent any noise to the driver when the strut contacts the jounce bumper. As stated with the upper isolator, choosing a grease with good water washout capability, elastomer compatibility, and wide temperature performance is critical – Fluorocarbon Gel 880 or Rheolube 393
INTERNAL STRUT/SHOCK OIL
A strut or shock uses an internal hydraulic oil to lubricate bearings and seals while providing a damping action to accommodate for road disturbances. As a strut or shock is actuated, the exchange of oil through valves slows the action, providing needed damping. The choice of a correct oil will reduce friction on internal parts and allow the strut to perform properly over wide temperature ranges needed in automotive. Nye Lubricants has developed specialised oils designed to significantly reduce internal friction and optimise the damping action of struts and shocks – Synthetic Oil 148G & Synthetic Oil 185D
Please get in contact to find out how we can help you with your automotive shock or strut component.