Diesel Fuel Stabilizer for Clean, Reliable Engine Performance

STA-BIL Diesel Fuel Stabilizer is engineered to keep your diesel fuel fresh and your engine components protected, whether in storage or daily use. This advanced formula prevents fuel degradation for up to 12 months, helping to eliminate the formation of sludge, sediment, and varnish in tanks and fuel lines. It’s ideal for use in generators, trucks, agricultural equipment, marine engines, and more.

By cleaning and lubricating the entire fuel system, this diesel fuel stabilizer promotes smoother starts and consistent engine performance. It also removes water from fuel—an essential benefit for preventing the microbial growth that leads to clogged filters and costly repairs. The formula reduces oxidation and protects against rust and corrosion, especially in modern high-pressure fuel systems. Safe for all ULSD (Ultra-Low Sulphur Diesel) and biodiesel blends, it’s a simple, effective way to protect your equipment and reduce long-term maintenance.

• Preserves diesel fuel quality for up to 12 months
• Prevents sludge, sediment, and varnish formation
• Cleans and lubricates injectors, pumps, and fuel lines
• Removes water to stop algae, bacteria, and fungi growth
• Protects against corrosion and thermal breakdown
• Safe for all diesel engines and fuel blends, including ULSD and biodiesel
• One 32oz (946ml) bottle treats up to 320 gallons (1,200 litres)