Synthetic Motor Oil
Compare AMSOIL's synthetic motor oil lines — engineered for maximum protection, fuel efficiency, and extended drain intervals across all passenger vehicle applications.
AMSOIL Signature Series 100% Synthetic Motor Oil | Advanced Protection
AMSOIL Signature Series provides 75% more engine protection against wear. Extended drain intervals up to 25,000 miles. Available in 8 viscosities.
0W-20 5W-20 0W-30 5W-30 10W-30 0W-40 5W-50 0W-16
Shop All Synthetic Motor Oil
Browse the complete AMSOIL catalog for synthetic motor oil products.
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