Premium Protection for High-Horsepower Ford Mustangs


AMSOIL adds 5W-50 viscosity to its Signature Series line. 

Combining sports styling and muscle with options that appeal to the mass market, the Ford Mustang is widely considered an American classic. Introduced at the New York World’s Fair on April 17, 1964 and buoyed by network advertising and appearances as the 1964 Indianapolis 500 pace car and in the 1964 James Bond film, “Goldfinger,” the high-performance car quickly grabbed the attention of motorists everywhere and shattered sales records. The Mustang celebrated its 50th anniversary in 2014, and it continues to maintain its popularity and appeal. 

Much like the iconic Ford Mustang, AMSOIL is an American original and performance leader. AMSOIL set all-new standards for motor oil quality and performance when it introduced the world’s first synthetic motor oil to meet American Petroleum Institute (API) service requirements in 1972, and it continues to produce the top-performing lubricants available on the market.


New Signature Series 5W-50

AMSOIL has expanded the Signature Series line to include a robust 5W-50 synthetic motor oil formulated specifically for high-horsepower Ford Mustang engines. Signature Series 5W-50 Synthetic Motor Oil (AMR) provides top-of-the-mark protection and performance that customers expect from Signature Series, and it is excellent for all Mustang engines calling for a 5W-50 viscosity. 

  • Withstands the stress of high horsepower and heat to provide outstanding wear protection
  • Resists viscosity loss due to mechanical shear
  • Resists thermal breakdown
  • Helps prevent sludge deposits and keeps engines clean
  • Reduces oil consumption and emissions
  • Maximizes fuel economy



AMSOIL Signature Series 5W-50 Synthetic Motor Oil is recommended for Ford Mustang applications calling for 5W-50 motor oil and requiring the Ford WSS-M2C931-C performance specification.

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