LEADING THE INDUSTRY IN SYNTHETICS

Feed your engine with oil that lasts 5x longer and 6x times the protection.

Save money every year using Amsoil on conventional cars and trucks.

For heavy duty applications and protection against wear.

Improve your performance and rise above the competition.

Motorcycle Stunt

COME AND VISIT US

OR WE CAN COME TO YOU

We value each and every one of our customers. We offer door to door deliveries for orders over $300. Or a flat rate delivery fee, so you can get what you need when you need it.

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WHY CHOOSE AMSOIL

No matter what job, no matter what vehicle, no matter what competition. We have you covered! 

Call us and talk about what you need and we will find the right oil to any application you may have.

ALWAYS OPEN
FOR YOU

Stop by and see us or call us today. We are always open and would love to hear from you. One of our experienced team members will be here to answer your questions and find you the synthetic oil you deserve. 

SAVE YOUR MONEY

Find out how AMSOIL synthetic lubricants save you money by maximizing fuel economy and reducing oil consumption. Our oil destroys the competition and gives you more protection than conventional synthetics.

LONGER-LASTING

ENGINES

AMSOIL shields your automobile with 75% more engine protection against horsepower loss and wear than required by a leading industry standard*, extending the life of vital components like pistons and cams.

BECOME A PREFFERED CUSTOMER

Mostrar Mais

FREE SHIPPING

REFERRAL REWARDS

REDUCED PRICING

FREE SWAG

P.C. POINTS

Free shipping on orders more than $100.

Refer friends and family members to the P.C. Program and receive 500 bonus points when the referred customer makes a qualifying purchase.

Save up to 25 percent on every order.

Earn points on all purchases. Every 50 points earned is redeemable for $1 off a future order.

Randomly receive free swag when you place an order.

CALL US

OPENING HOURS

Mon - Fri: 7am - 10pm

EMAIL US

OVER 30 YEARS EXPERIENCE

Family owned business since 1974

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OUR SERVICES

- Motor Oil

- Hydraulic Oil

- Greases

- Spray Lube & Cleaners

- Transmission Fluid

- Clothing & Merchandise

VISIT US

91 Kollock Knapp rd. Underwood, WA 98651

Made Strong By Underwood Synthetics LLC 2021