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Protection You Demand. Performance You Deserve.

Save up to 25% on every order + FREE shipping on orders over $100. AMSOIL — The First in Synthetics since 1972.

🔬 AMSOIL Signature Series: Up to 25,000 Miles or 1 Year Between Oil Changes

Save $360+ Per Year on Oil Changes

(Based on 1 oil change per year with AMSOIL Signature Series 100% Synthetic Motor Oil vs. 3–4 oil changes with other full synthetic motor oils)

AMSOIL has been the leader in synthetic lubrication since 1972. Preferred Customers save up to 25% on every order — starting at just $10.

Source: AMSOIL.com product specifications. Based on Signature Series 25,000-mile/1-year drain interval vs. 3 oil changes at $80 average per change.

✓ AMSOIL since 1972 • ✓ Save $360+/year

Without AMSOIL:
  • • Changing oil every 3–5K miles
  • • Paying $60–80 per oil change
  • • Wasting 3–4 hours per year
  • • Paying full retail prices
With AMSOIL Preferred Customer:
  • • ONE oil change per year
  • • Saving $360+ annually
  • • Peace of mind protection
  • • Up to 25% off everything

Here's Everything You Get:

Your Price: Just $10

Up to 25% OFF Every Order
Save hundreds per year on premium synthetic oil and products
FREE Shipping on Orders $100+
No shipping fees on your oil change supplies (saves $15–25 per order)
$5 Back for Every $100 Spent
Earn rewards on every purchase + $5 birthday bonus
FREE Renewal at $500+ Annual Spend
Your $20 membership pays for itself automatically

Why AMSOIL Beats the Competition

AMSOIL Signature SeriesMobil 1 ExtendedRoyal Purple HPS Full Synthetic
Oil Change Interval25,000 mi / 1 yr20,000 mi / 1 yr7,500–10,000 miles
PC Member PriceUp to 25% offRetail onlyRetail only — no membership discount
Membership Cost$10 for 6 monthsN/AN/A
Cost EfficiencyLowest cost-per-mile of any syntheticHigher cost-per-mile (more frequent changes)Highest cost-per-mile (standard drain intervals)

Source: AMSOIL.com, Mobil1.com, RoyalPurple.com (verified April 2026)

6-Month Intro Offer
$10
6-Month Trial
  • All benefits for 6 months
  • Quarterly AMSOIL Magazine included
BEST VALUE
Most Popular
$20
Full Year
  • All benefits for 12 months
  • FREE renewal at $500+ spend
  • Save $10 vs 6-month option

✓ Free shipping $100+ • ✓ Birthday bonus • ✓ Earn $5 per $100

What AMSOIL Users Are Saying
Trusted since 1972 • AMSOIL manages all billing and fulfillment

"I've saved over $400 in the first year alone. The up to 25% discount pays for itself immediately, and my truck runs better than ever."

— Mike R., Texas
Ford F-150 Owner

"Changing oil once a year instead of 3–4 times saves me so much time and money. Best decision I've made for my vehicle."

— Sarah K., California
Honda Civic Owner

Ready to Stop Overpaying?

Join now for just $10 and start saving up to 25% on every order. Your wallet — and your vehicle — will thank you.

Trusted since 1972
AMSOIL manages all billing and fulfillment
Save $360+ annually

Three Tiers Of Premium Performance

Choose the perfect protection level for your engine

BEST VALUE
SIGNATURE SERIES

SIGNATURE SERIES

100% SYNTHETIC MOTOR OIL

Maximum Engine Protection

Up to 25,000 miles or 1-year, whichever comes first*

EXTENDED-LIFE

EXTENDED-LIFE

100% SYNTHETIC MOTOR OIL

Boosted Engine Protection

Up to 20,000 miles or 1-year*

OE 100% SYNTHETIC

OE 100% SYNTHETIC

MOTOR OIL

Advanced Engine Protection

OEM-recommended drain interval

* Whichever comes first. In normal service. Source: AMSOIL.com product specifications.

Our Most Popular Products

Trusted by professionals and enthusiasts worldwide

AMSOIL Signature Series

Signature Series

Premium Synthetic Motor Oil

Our flagship product delivers maximum protection and performance. 75% more engine protection than required by industry standards.

AMSOIL XL Extended Life

XL Extended Life

Extended Drain Synthetic Motor Oil

Convenience meets performance with extended 10,000-mile/6-month drain intervals. Save time and money without sacrificing protection.

AMSOIL Diesel Oil

Heavy-Duty Diesel Oil

Maximum Protection for Diesel Engines

Engineered for the extreme demands of diesel engines. Superior protection against wear, deposits and oil consumption.

AMSOIL

Get Your FREE AMSOIL Catalog

Discover the complete line of premium synthetic lubricants and performance products. Browse hundreds of products designed to maximize performance and protection.

300+

Premium Products

1972

First in Synthetics

25%

PC Member Savings

✓ No credit card required • ✓ Mailed directly to your door • ✓ Factory-direct pricing

AMSOIL Product Line

What Our Customers Say

Real experiences from AMSOIL users who trust synthetic lubricants for their vehicles

"I've been using AMSOIL in my Ram for over 15 years. Just hit 500,000 miles and the engine runs like new. Best synthetic oil on the market, hands down."

Jeff S.

Scottsdale, AZ

Ram Truck — 500K Miles

"My Buick has 340,000 miles and still doesn't burn a drop of oil between changes. AMSOIL has kept this engine running perfectly for years."

Sarah L.

Austin, TX

Buick — 340K Miles

"Joined as a Preferred Customer and saved over $200 in the first year. The $10 trial pays for itself on the first order."

David K.

Dallas, TX

Dodge Ram

AMSOIL manages all billing, fulfillment, and shipping directly. SyntheticsTX is an authorized independent dealer.

Full Service Dealer

With over 40 years of experience, AMSOIL has established itself as the leading company in synthetics and lubricants. Esteban Alvarez is an Authorized AMSOIL Dealer and the founder of SyntheticsTX, serving customers across Texas with personalized service and expert product recommendations. SyntheticsTX is committed to providing the best synthetic lubricants tailored to your needs.

Business Hours

Monday - Friday: 9:00 AM - 7:00 PM

Saturday: 11:00 AM - 5:00 PM

Contact

Esteban Alvarez

(512) 766-4963

Location

Georgetown, TX

Serving Austin & Central Texas

Still Not Sure Which Product Is Right For You?

Contact us for more information on AMSOIL products, for help determining which products you need or to place an order.

Membership Has Its Perks

The best customers get the best deals. Become an AMSOIL Preferred Customer for exclusive deals and promos, free shipping on orders over $100.

We Have The Right Product For All Of Your Projects

Browse the full line of premium AMSOIL products in the latest AMSOIL factory direct catalog.