evo.com | WPL Suspension Small Parts > Try this oil for high performance at higher altitudes. WPL 7wt Suspension Oil is all natural and safe to dispose of without special methods. High Oxidative Stability Prevents Breakdown Under Heat and Shear Additive Free, Bio-Based Formula made with Natural Ingredients Bio-Based Formula made with Natural Ingredients Non-Reactive with Fork Seals Biodegradable, Non-toxic, PTFE-Free | WPL 7wt Suspension Oil 2023 - 1 L