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The Best Priced 100% Synthetic Value

AMSOIL 5W-30 100% Synthetic High-Mileage Motor Oil

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Customer Reviews

Is an Engine Flush Good or Bad?

flushed cylinder head

Should you be concerned using Engine Flush? John Baker|Nov 26, 2018 11:00 AM To flush or not to flush. (One of our best sellers here in Sioux Falls) It’s a question whose answer is obvious in the bathroom, but vigorously debated in the garage. Let’s get right to the point. Is an engine flush good or […]

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 […]