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Signature Series: The Measure Of Perform...

See how Signature Series scored vs Schaeffer's and Mobil 1

SIGNATURE SERIES: Brand comparison Testing – Viscosity In the NOACK Volatility Test, Signature Series scored far below the API limit for evaporation and proved it remains where it’s needed most – protecting your engine. Nearly 35 years ago AMSOIL became the first oil manufacturer in the United States to use the NOACK Volatility Test as […]

Signature Series Motor Oil Protects Engi...

LSPI

SIGNATURE SERIES Protects Engines from Future Industry Problem LSPI can destroy pistons and connecting rods, bringing an engine to a standstill in seconds. Original equipment manufacturers (OEMs) like General Motors (GM)* have addressed the issue by designing tests to gauge a motor oil’s ability to prevent these destructive events. Signature Series achieved 100 percent protection […]