Why Choose Synthetic Lubricants?

Modern engines, transmissions and industrial drivetrains place far greater heat, load and cleanliness demands on lubricants than they did even a decade ago. Conventional (petroleum‑based) oils are refined from crude, so their molecules vary in size and can contain impurities. Synthetic lubricants are custom‑built in the lab – every molecule is engineered for a purpose – giving them superior film strength, cleanliness and stability across a wider temperature range.

Key Advantages vs. Conventional Oil

Benefit Synthetic Advantage Why It Matters Wear Protection Stronger, more uniform molecular film resists metal‑to‑metal contact. Maximizes engine, gear and bearing life. Extremes of Heat Higher oxidative stability prevents varnish/sludge up to 500 °F. Keeps turbochargers and piston rings cleaner. Extremes of Cold Faster flow at start‑up (lower cold‑crank viscosity). Reduces dry‑start wear when 80 % of engine damage occurs. Longer Service Life Resists shearing and TBN depletion, enabling extended drains with oil analysis. Fewer oil changes, less downtime, lower cost per mile. Fuel Economy & Emissions Lower internal friction and lower volatility vs. conventional oil. Boosts MPG and cuts tail‑pipe hydrocarbons.

Why AMSOIL Leads the Synthetic Revolution – Since 1972

  1. 6× More Wear Protection – AMSOIL Signature Series meets a 100‑hour engine test with 75 % less wear than the API SP limit.

  2. Industry‑Leading Cold‑Start Performance – Pumps in < 0.0 2 sec at ‑40 °F, protecting cams and journals instantly.

  3. Extended‑Drain Credibility – Proven in taxi fleets up to 25 000 miles/one year (with oil analysis).

  4. Foam‑Control & Shear‑Stability Chemistry – Gear, ATF and hydraulic fluids maintain viscosity under severe load.

  5. Single‑Source Formulation – AMSOIL controls every additive package in‑house for consistent quality.

Bottom line: no other lubricant company matches the breadth of proven, extended‑drain synthetic technology across engines, drivetrains, powersports and industrial equipment.

Featured AMSOIL Synthetic Products & What Makes Them Superior

Signature Series 100 % Synthetic Motor Oil

Gasoline Engines (Cars, SUVs, Pickups)

  • Link: Shop Signature Series

  • Why it’s better: Up to 6× the wear protection required by ASTM D6891 †, low‑volatility to reduce oil consumption, and stays TBN‑strong for extended drains.

Max‑Duty Synthetic Diesel Oil

  • Link: Shop Max‑Duty Diesel

  • Why it’s better: Built‑in boosted detergent system fights EGR soot, plus 6× wear protection for flat‑tappet cams common in diesels.

SEVERE GEAR® Synthetic Gear Lube

  • Link: Shop Severe Gear

  • Why it’s better: Extreme‑pressure chemistry forms a sacrificial layer to protect ring‑and‑pinion sets under up to 250 000 psi of contact stress.

Synthetic Transmission Fluids

  • Link: Shop ATF, CVT & DCT Fluids

  • Why they’re better: Custom base oils resist shear, preventing shift flare and clutch glazing while enabling smooth, fast cold‑weather shifts.

V‑Twin & Powersports Oils

  • Link: V‑Twin & Powersports Oils

  • Why they’re better: Shear‑stable formula withstands the high temp of air‑cooled bikes; anti‑foaming agents keep lifters quiet.

SABER® Professional 100 % Synthetic 2‑Stroke Oil

  • Link: Shop Synthetic 2‑Stroke Oil

  • Why it’s better: Delivers fuel stabilization and carbon‑free power for string trimmers & chainsaws; 50:1 mix covers all OEM ratios.

P.i.® Performance Improver Fuel Additive

  • Link: Shop P.i.

  • Why it’s better: Cleans injectors to restore up to 14 % horsepower, improves MPG and controls knock in GDI engines.

Heavy‑Duty Antifreeze & Coolant

  • Link: Shop Heavy‑Duty Antifreeze

  • Why it’s better: Extended life (up to 1 M miles/8 years) plus proprietary corrosion inhibitors to protect liner cavitation & aluminum components.

Synthetic Greases

  • Link: Explore AMSOIL Greases

  • Why they’re better: Calcium‑sulfonate thickener handles higher loads than conventional lithium greases and resists water washout.(Amsoil Blog)

Ready to Make the Switch?

  1. Buy Online – Order through this site and your products ship direct to your door.

  2. Questions? – Email or call your Authorized AMSOIL Dealer for personal recommendations.

  3. Protect Everything – From daily drivers to heavy‑duty fleets and lawn equipment, there’s an AMSOIL synthetic solution engineered to outperform.

† Wear protection claim based on independent testing of AMSOIL Signature Series 5W‑30 vs. API SP engine oil specification in the Sequence IVB Test.