Dan R's Automotive

The difference between shocks and struts, and when do we need to ...

Nov 18, 2013 ... Regular shocks use hydraulic fluid and air as their dampening system. Premium quality shocks and struts use compressed nitrogen gas instead of air. Gas shocks don't get air bubbles that affect the performance of regular shocks. If you do a lot of high performance driving, off-roading or just want added ...