Schaeffer's SoyUltra® 131C gasoline additive increases MPG by up to 5% and increases lubricity by 45%.  

SoyUltra is designed for use with ethanol-blend gas, which is typically the most common type of gas found at most gas stations.

is designed for use with non-ethanol gas or pure gas, which can be found at select gas stations in the US.  You can reference this list of .

Treatment Ratio:

• Clean-Up Performance: 12 oz (1 bottle) for every 15-20 gallons
• Keep It Clean Performance: 1 oz per 15 gallons 
  

Schaeffer's SoyUltra ® is a concentrated, multi-functional, ashless gasoline additive specially formulated for use in all types of gasoline and ethanol blends used in new and old two-stroke and four-stroke gasoline-powered vehicles.  Removes fuel deposits and reduces octane requirement from 89 to 87. Ethanol Friendly (E10, E15, E85).  Recommended for Ethanol blended fuel (E10-E85).

Made from soybean oil, SoyUltra® contains an additive package with friction modifying and detergency properties. This unique blend provides excellent wear protection for fuel injectors and fuel pumps, especially engines burning gasoline that’s low sulfur, reformulated, oxygenated, or ethanol blend.

Additional Information

• Optimizes performance and fuel economy up to 5%
• Improved drivability, smoother idling
• Reduces emissions, exhaust smoke, and particulates
• Keeps injectors free from varnish, deposits, and gum
• Superb piston deposit control to reduce the risk of engine seizure
• Stabilizes fuel during storage