Amsoil

amsoil.com · Tech

Amsoil's promotional cycle tends to move — new codes drop, older ones expire, and the mix shifts week to week. We've got 17 active offers listed here — all codes you paste at checkout. Codes surface here after they clear our checks — if one stops working, it comes down on the next sweep.

Best code right now
$49 off — 5" Gasoline Stabilizer for $49
Purchase the 5" Gasoline Stabilizer for a special price of $49.
17 verified offers Last checked Aug 29, 2026 DataProt editorial review See all codes
9 active · verified Aug 29, 2026

Verified Amsoil coupons

$100 off

Free LED Headlamp with $100+ Order

Receive a complimentary LED headlamp when you spend $100 or more on any products sitewide.

Last checked yesterday
+5 more $ off codes Show fewer
Deal

Complimentary Gift with Qualifying Purchases

Receive a complimentary gift when you purchase qualifying items.

Updated yesterday
$75 off

Free Parts Bowl with Select Purchases Over $75

Receive a complimentary parts bowl with the purchase of select items, provided your order is at least $75.

Updated yesterday
$75 off

Free Gift with Purchases Over $75

Receive a free gift when you spend $75 or more on your purchase.

Updated yesterday
Deal

Buy 4 Bottles, Get 1 Free

Purchase four bottles of motor oil and receive a fifth bottle at no extra cost.

Updated yesterday
$75 off

Free 3-Pack of Shop Rags with $75+ Order

Receive a complimentary 3-pack of shop rags when you spend $75 or more on your order. This offer applies storewide.

Updated yesterday
$8 off

$8 Cuffed Beanie on Orders $75+

Get a cuffed beanie for just $8 when you place an order of $75 or more.

Updated yesterday
10% off

10% Off Select Products

Enjoy a 10% discount on selected products.

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$5 off

$5 Off Eligible Brands on Orders $49+

Receive a $5 discount on eligible brands when you spend $49 or more.

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+2 more $5 off codes Show fewer
$5 off

$5 Metal Protector with $60 Purchase

Get a $5 Metal Protector when you spend $60 or more sitewide.

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$5 off

Pi Performance Improver for $5

Get the Pi Performance Improver Gasoline Additive for only $5.

Updated yesterday
$49 off

5" Gasoline Stabilizer for $49

Purchase the 5" Gasoline Stabilizer for a special price of $49.

Updated yesterday
5% off

5% Off Eligible Products on Orders $49+

Save 5% on eligible products when your order total is $49 or more.

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Free shipping

Storewide Free Shipping on Orders $49+

Get free shipping on all items when your order is $49 or more.

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+1 more Free shipping code Show fewer
Free shipping

Free Shipping on Orders Over $49

Enjoy complimentary shipping when your order total reaches $49 or more.

Updated yesterday
Deal

Complimentary Gift with Qualifying Purchase

Receive a special gift with a qualifying purchase. See offer details for more information.

Updated yesterday
$75 off

Free Gift with $75 Purchase

Receive a free gift when your order total reaches $75.

Updated yesterday
About the store

About Amsoil

Amsoil has been a trusted name in synthetic lubricants since 1972, offering a wide range of products designed to maximize the performance and lifespan of your vehicles and equipment. From motor oils and transmission fluids to filters and greases, Amsoil formulates its products with advanced synthetic technology to provide superior protection against wear, heat, and corrosion. Whether you're a professional mechanic, a weekend warrior, or simply someone who cares about maintaining their vehicle, Amsoil provides solutions for cars, trucks, motorcycles, boats, and more.

Known for its commitment to quality and innovation, Amsoil consistently earns high marks from customers who demand the best. While Amsoil products may represent a premium investment, using Amsoil coupons and promo codes can help you save money while ensuring your engines and equipment receive top-tier lubrication and protection. Check back regularly for the latest deals and discounts to keep your machines running smoothly without breaking the bank. Unlock exclusive savings and experience the difference that high-quality synthetic lubricants can make.

Before you buy

Good to know about Amsoil

How do I use a coupon code at Amsoil?

To redeem an Amsoil coupon code, simply enter the code in the designated field during the checkout process on the Amsoil website. The discount will be applied to your order total before you complete your purchase. Be sure to check the expiration date and any terms and conditions associated with the coupon.

Does Amsoil offer free shipping?

Amsoil occasionally offers free shipping promotions on qualifying orders. Check the Amsoil website or sign up for their email newsletter to stay informed about current shipping deals and other special offers. Free shipping thresholds and other restrictions may apply.

What types of products does Amsoil sell?

Amsoil offers a comprehensive range of synthetic lubricants and related products, including motor oils, transmission fluids, gear lubes, greases, fuel additives, filters, and more. They cater to a variety of vehicles and equipment, including cars, trucks, motorcycles, boats, and industrial machinery.

Does Amsoil offer any discounts for preferred customers?

Yes, Amsoil has a Preferred Customer program that offers discounted pricing, free shipping on qualifying orders, and other exclusive benefits. You can sign up for the Preferred Customer program on the Amsoil website.

What is Amsoil's return policy?

Amsoil has a satisfaction guarantee and accepts returns of unused products within a specified timeframe. Please refer to the Amsoil website for the most up-to-date information on their return policy, including any conditions or restrictions that may apply.

How often does Amsoil have sales?

Amsoil frequently offers promotions and sales throughout the year, often coinciding with holidays or seasonal events. Check their website regularly or subscribe to their email list to stay informed about upcoming sales and special offers.

Are there any Amsoil discounts for mechanics or auto shops?

Amsoil offers commercial accounts for mechanics, auto shops, and other businesses that use their products in professional settings. These accounts may provide access to special pricing and other benefits. Contact Amsoil directly for more information about commercial account options.