Select Synthetics

Signature Series 5W-50

100% Synthetic Motor Oil

Product code: AMRQTC-EA

• 75% more engine protection against horsepower loss and wear

• 50% more cleaning power vs. AMSOIL OE Motor Oil

•Protectsturbochargers 72% better than required by the GM dexos1 Gen 2 specification

• Trusted by professional engine builders

• Guaranteed protection for up to 25,000 miles or one year

Learn More

PACKAGE SIZES AND UNITS OF MEASURE

Availability and Price subject to AMSOIL stock, visit product's page for updated information.

Get It Here!

TECHNICAL SPECIFICATIONS

Read the Warranty

More engine protection

Molecular

Engineering

for Modern Engines

Keeping it Cool

by Reducing Friction and Lowering Temperatures

The Right

Environmental Choice

Finest
Lubrication in the World with Nano Technology

Use AMSOIL Signature Series Synthetic Motor Oil in applications that require any of the following specifications:

5W-50 (AMR): API SP, SN PLUS, SN…; Ford WSS-M2C931-C (Mustang); GM dexos R
AMSOIL Signature Series Synthetic Motor Oil is compatible with other conventional and synthetic motor oils. Mixing other oils with AMSOIL motor oils, however, will shorten the oil’s life expectancy and reduce its performance benefits. Amsoil does not support extended drain intervals where oils have been mixed.

Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils.
Normal service – up to 25,000 miles (40,200 km), 700 hours of operation or one year whichever comes first in personal vehicles not operating under severe service.
Severe service – up to 15,000 miles (24,140 km), 700 hours of operation or one year whichever comes first. Severe service conditions include commercial or fleet vehiclesexcessive idlingorfrequent towing, hauling, plowing or driving in dusty conditions.
• Modified engines (non-stock) racing vehicles and vehicles using alternative fuels (E85, CNG, propane, etc.) are excluded fromextended drain interval recommendations.
• Change at the vehicle manufacturer’s recommended drain interval outside U.S. And Canada.
• Amsoil oil filters are designed for extended drain intervals. Do not exceed 12,000 miles (19,312 km) or one year with other brandfilters unless longer intervals are recommended by the vehicle manufacturer. Always change filter when changing oil.
• Check oil regularly to maintain proper levelsAMSOIL Oil filters stop smaller particles flow more oil and last longer than regular filters. For best performance use Amsoil Oil filters