# Cerma STM-3 vs Other Engine Treatments | Factor | Cerma STM-3 | PTFE (Teflon) | Oil Thickeners | MoS2 (Moly) | |---|---|---|---|---| | How it works | Bonds with metal permanently | Coats surface temporarily | Thickens oil | Temporary lubricant | | Survives oil changes | Yes | No | No | No | | Friction reduction | Up to 90% | 10-20% | 5-10% | 15-25% | | Fuel economy gain | 4-21% | 2-5% | 0-2% | 3-8% | | Reapplication | Never | Every oil change | Every oil change | Every oil change | | Warranty safe | Yes | Varies | Yes | Varies | --- Website: https://cermatreatment.com | Phone: 239-344-9861