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Suspension and Winter

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Old 11-28-2006 | 03:26 PM
  #21  
fastsuv's Avatar
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Joined: 02-01-2006
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From: lockport,ny
"Gas" shocks still have hydraulic fluid in them. They use the addition of an inert gas (usually nitrogen) to extend/retract faster. The hydraulic fluid can aerate (foam up with air bubbles) under fast action. The Nitrogen under pressure keeps the air that is dissolved in the hydraulic fluid from outgassing and foaming up. Since air can be compressed (hydraulic fluid cannot be compressed) this would result in unpredictable shock operation.

Steve
Old 11-29-2006 | 10:36 AM
  #22  
-md- HHR's Avatar
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Joined: 06-23-2006
Posts: 578
From: Northeast Ohio in the Lake
Originally Posted by fastsuv
"Gas" shocks still have hydraulic fluid in them. They use the addition of an inert gas (usually nitrogen) to extend/retract faster. The hydraulic fluid can aerate (foam up with air bubbles) under fast action. The Nitrogen under pressure keeps the air that is dissolved in the hydraulic fluid from outgassing and foaming up. Since air can be compressed (hydraulic fluid cannot be compressed) this would result in unpredictable shock operation.

Steve
Said it perfectly.
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