Schaeffer's 139A Soy Shield All Season Diesel Fuel Additive 16 oz
Schaeffer's Diesel Treat 2000 Summer

Schaeffer's 139A Soy Shield All Season Diesel Fuel Additive 16 oz

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Part Number: sch0139A
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SoyShield All Season is a concentrated, multi-functional fuel additive formulated for use in all types of diesel fuels, especially low sulfur and ultra low sulfur diesel fuels.

Made from soybean oil, SoyShield® contains an additive package with friction modifying and detergency properties. This unique blend provides excellent wear protection and cleanliness for fuel injectors and fuel pumps. Using advanced anti-wax settling agents and cold flow improver, SoyShield reduces and safely disperses wax crystals from forming and clogging fuel filters and lines.

Further blended into SoyShield® is our proprietary lubricity additive, SynShield®, which prevents fuel system wear and injector scoring for longer component life. 

SoyShield® meets the cleanup and keep clean performance as shown by the Peugeot DW10 Injector Depositing Test throughout the entire fuel system. SoyShield® is registered and meets US EPA requirements for blending into low sulfur and ultra low sulfur diesel fuels. Contains less than 15PPM sulfur.

Performance Benefits
  • Boosts cetane number up to 4 points.
  • Easier cold weather starting and reduced misfiring at lower air inlet temperatures.
  • Optimizes performance and fuel economy up to 5%.
  • Improved drivability, smoother idling.
  • Helps clean and control deposits, gums and varnish to restore and maintain performance.
  • Lowers fuel’s gelling point.
  • Inhibits oxidation during storage for better storage stability.
  • Helps control acidic by-product produced by the combustion of diesel fuel.
  • Strong wear protection for injectors, fuel pumps, supplemental rings and valve trains.

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