AMSOIL Diesel All-In-One Protection With Big Performance Boost – 237 ml
Specially engineered to provide exceptional all-season protection for a serious performance boost. One dose delivers outstanding detergency, improved lubricity, better cold flow and higher cetane.
- One ounce treats up to 2.5 gallons of fuel
- Combines the benefits of AMSOIL Diesel Injector Clean, Diesel Cold Flow, and Diesel Cetane Boost in one convenient package
- Delivers outstanding detergency, improved lubricity, better cold flow, and higher cetane
- Provides excellent all-season protection and performance
- Provides significant lubricity improvement in diesel fuels found across the U.S., delivering improved wear protection.
- Provides as much as 32˚F (18°C) better protection against cold temperature gelling than Howes* Lubricator Diesel Treat
Specially engineered to provide exceptional all-season protection for a serious performance boost. One dose delivers outstanding detergency, improved lubricity, better cold flow, and higher cetane.
Cleans, Protects and Restores Power
- Cleans dirty injectors
- Restores power and torque
- Reduces smoke and emissions
- Combats fuel-system corrosion
- Provides significant lubricity improvement in diesel fuels found across the U.S., delivering improved wear protection.
AMSOIL Increases Lubricity
Testing reveals AMSOIL Diesel All-In-One provides significant lubricity improvement in diesel fuels found across the U.S., delivering improved wear protection.

Superior Cold-temperature Protection
- Lowers cold filter-plugging point (CFPP) by up to 40°F (22°C)
- Enhances engine reliability in cold temperatures
- Improves low-temperature startability
- Prevents wax settling during storage
- Provides as much as 32˚F (18°C) better protection against cold temperature gelling than Howes Lubricator Diesel Treat

Based on third-party testing in July 2017 of AMSOIL Diesel All-In-One and Howes Lubricator Diesel Treat using diesel fuel representative of the U.S. marketplace and Howes’ recommended treat ratio for above 0°F (-17.8°C.)
Improves Fuel Quality
- increases cetane up to 4 points
- Delivers maximum horsepower
- Increases fuel economy up to 8%
- Improves startability
- Smooths idle.