AMSOIL Synthetic Motor Oil
Order online — real prices, shipped direct
Ships direct from AMSOIL with Tuned Yota's dealer referral attached.
Why AMSOIL Signature Series
- 75% more wear protection for longer engine life.1
- 100% protection against LSPI — safeguards modern turbo & direct-injection engines.2
- Guaranteed up to 25,000 miles or 1 year between oil changes.
- Purpose-built for turbocharged and direct-injection engines — and turbo vehicles use the normal-service interval, not severe.
Signature Series vs. XL vs. OE — which AMSOIL oil?
AMSOIL offers three synthetic tiers. Signature Series is the top tier — 75% more wear protection and up to a 25,000-mile drain — and it's what we run in tuned Toyota and Lexus builds. XL / Extended-Life adds 37% more cleaning power with a 20,000-mile guarantee. OE is the OEM-interval, API- and dexos-licensed choice with 47% more wear protection than conventional oil. For a tuned, towing, or high-performance vehicle, choose Signature Series.
Save up to 25% for life
Become a Preferred Customer under Tuned Yota — wholesale pricing (up to 25% off retail), points, exclusive promotions and free gear. The membership pays for itself in about two oil changes.
Become a Preferred Customer →AMSOIL synthetic oil — FAQ
Up to 25,000 miles or one year, whichever comes first — guaranteed. Turbocharged vehicles fall under the normal-service category. Always change the oil filter when you change the oil.
No. Using AMSOIL synthetic lubricants does not void your vehicle or equipment manufacturer's warranty, and all AMSOIL lubricants and filters are covered by the AMSOIL Limited Warranty.
AMSOIL formulates Signature Series to exceed minimum industry standards rather than to a one-size-fits-all license, which lets it adopt new protection technology faster. AMSOIL's OE line is API- and dexos-licensed for those who prefer it.
From Tuned Yota, an Authorized AMSOIL Dealer. Order online and it ships direct from AMSOIL anywhere in the U.S. — or enroll as a Preferred Customer to save up to 25%.
AMSOIL for your Toyota or Lexus
1 75% more wear protection based on independent testing of AMSOIL Signature Series 0W-20 (ASTM D6891). 2 100% LSPI protection based on zero LSPI events in five consecutive GM dexos1 Gen 2 LSPI tests of Signature Series 5W-30. Product recommendations are from AMSOIL's official materials; checkout completes on amsoil.com. Tuned Yota is an Authorized AMSOIL Dealer.