AMSOIL Price Guide: What It Really Costs
Live pricing pulled directly from AMSOIL’s own site, the exact math behind the Preferred Customer discount, and the real cost per mile once you factor in the 25,000-mile interval. US & Canada, 2026.
$20/year, up to 25% off every order, no quotas or minimums. See how the membership works →
By Alan Williams, AMSOIL Direct Jobber #1243776 · Tomball, TX · 225-441-6397
Every price below was pulled directly from AMSOIL’s own product pages, not estimated. Where I don’t have a verified current number, I say so plainly rather than guess.
Last updated September 2026. Prices confirmed live on amsoil.com and subject to change; always check your cart for the exact current price.
On This Page
Quick Answer
As of this writing, AMSOIL Signature Series motor oil lists at $17.99 per quart retail, with Preferred Customers saving $4.00, bringing the price to $13.99 per quart. That works out to a 22.2% discount on this specific product, not a flat 25%. Preferred Customer membership is $20/year or $10 for a 6-month trial. Dealer membership is $100/year and carries the same product pricing as Preferred Customer, the difference is the ability to earn commissions.
AMSOIL doesn’t publish a public price list, and package pricing (gallons, cases, drums) isn’t shown until you select a size in an actual cart. Anywhere this page can’t give you a verified live number, it says so rather than guessing.
The Mechanism Most Guides Skip
What the Discount Actually Computes To
AMSOIL’s own marketing says Preferred Customers “save up to 25%” on every order. Almost every price guide, including the old version of this page, repeats that number as if it applies uniformly to every product. Pulling the actual current product page for Signature Series 5W-30 tells a slightly different story: retail is $17.99 per quart, and the listed Preferred Customer savings is $4.00, which brings the price to $13.99.
Do the actual division, and $4.00 off $17.99 is 22.2%, not 25%. That’s not a mistake or a bait-and-switch, “up to 25%” is honest phrasing precisely because it’s a ceiling, not a guaranteed rate on every SKU. But nobody doing the math for you means most readers walk away assuming they’ll see exactly a quarter off every order, and on this product, in real dollars, they won’t.
This same $17.99 retail / $4.00 savings figure held across every viscosity grade checked for this guide, 5W-30 and 0W-20 both showed identical numbers, so it’s reasonable to expect the rest of the Signature Series line prices similarly. Other product lines and package sizes may compute to a different percentage, closer to or further from 25%, and there’s no way to know without checking the specific product.
Verified Live, Not Estimated
Real, Verified Signature Series Amsoil Prices
| Package size | Retail price | Preferred Customer price |
|---|---|---|
| Quart Bottle | $17.99 | $13.99 (save $4.00, 22.2%) |
| Quart Bottle, Case of 12 | Not published without selecting in cart | Not published without selecting in cart |
| Gallon Jug | Not published without selecting in cart | Not published without selecting in cart |
| Gallon Jug, Case of 4 | Not published without selecting in cart | Not published without selecting in cart |
| 55-Gallon Drum | Not published without selecting in cart | Not published without selecting in cart |
A real correction: an earlier version of this page listed a “5-Quart Jug” size at an estimated price. That package size doesn’t exist. AMSOIL’s actual Signature Series package options are Quart Bottle, Quart Bottle (Case of 12), Gallon Jug, Gallon Jug (Case of 4), and a 55-Gallon Drum, confirmed directly on the product page. If you’ve seen a “5-quart jug” referenced elsewhere for AMSOIL, treat that as an error, not a real SKU.
See your exact price at checkout. Join as an AMSOIL Preferred Customer.
Membership Comparison
The Three Ways to Buy, Compared
| Account type | Annual cost | Product price | Can resell |
|---|---|---|---|
| Retail (no membership) | $0 | Full retail ($17.99/qt Signature Series) | No |
| Preferred Customer | $20/yr, or $10 for a 6-month trial | Wholesale ($13.99/qt Signature Series) | No, personal use only |
| Dealer | $100/yr | Same wholesale price as Preferred Customer | Yes, earns commissions |
On a single quart, Preferred Customer membership pays for itself in five bottles ($4.00 saved × 5 = $20). For most drivers doing even one oil change a year on a multi-quart engine, that math clears easily. See our full Dealer vs. Preferred Customer comparison if you’re weighing whether the Dealer program’s commission potential is worth the higher fee.
Real Math, Shown in Full
The Real Cost Per Mile, Computed Honestly
AMSOIL guarantees Signature Series for 25,000 miles between changes, per AMSOIL’s own published service interval. Using the verified $13.99 Preferred Customer quart price, here’s the actual oil-only cost for a 5-quart oil change over that interval, shown with the math, not just a headline number:
5 quarts × $13.99/qt = $69.95 for the oil change
$69.95 ÷ 25 (thousands of miles) = $2.80 per 1,000 miles, oil only
Plus one EaO oil filter, not included in the figure above
That $2.80 per 1,000 miles is for the oil alone, using verified retail pricing and the manufacturer’s own stated interval. It doesn’t include the filter, and it assumes you actually get the full 25,000 miles, which AMSOIL backs with a warranty but which still depends on the vehicle and driving conditions.
Honest context on competitor comparisons: the old version of this page included a detailed AMSOIL-vs-Mobil-1-vs-Pennzoil price and interval table with specific dollar figures. Retail pricing on those products changes often enough that I’m not going to reprint numbers I haven’t personally verified today. The directionally honest comparison still holds: a shorter drain interval means more oil changes over the same mileage, which adds up regardless of the exact current price per quart of any specific competing brand.
Alan’s Take
“I’ve seen a lot of price guides, mine included in an earlier version, quote a flat 25% and a bunch of tidy dollar figures that were basically educated guesses. AMSOIL doesn’t publish a price sheet, and prices move. What I can actually promise you is the math I just showed: I checked the real product page today, and I’ll tell you plainly when a number is exact versus when it’s not published anywhere I can verify. If you want the precise current price for your specific product and size, log in as a Preferred Customer or call me and I’ll pull it for you directly.”
Frequently Asked Questions
How much does AMSOIL Signature Series cost per quart?
As verified directly from AMSOIL’s product page, Signature Series lists at $17.99 per quart retail, with Preferred Customers paying $13.99 after a $4.00 savings. Prices can change, so treat this as current at the time of writing rather than permanent.
Is the AMSOIL Preferred Customer discount really 25%?
AMSOIL advertises “up to 25%,” which is accurate as a ceiling but not a guarantee on every product. On Signature Series motor oil specifically, the verified current discount computes to 22.2% ($4.00 off $17.99), not a full 25%.
Does AMSOIL sell a 5-quart jug of Signature Series?
No. AMSOIL’s actual package sizes for Signature Series are Quart Bottle, Quart Bottle (Case of 12), Gallon Jug, Gallon Jug (Case of 4), and a 55-Gallon Drum. A “5-quart jug” is not a real AMSOIL package size.
Is AMSOIL Preferred Customer membership worth it?
At $20/year, the membership pays for itself after five quarts of Signature Series purchased at the current $4.00-per-quart savings. Most drivers changing oil at least once a year clear that easily, especially on engines taking 5 or more quarts.
See Your Exact Price
Join as an AMSOIL Preferred Customer and see live wholesale pricing on every product, every time.
- Up to 25% off every AMSOIL product
- Ships to the US and Canada
- No minimum orders, no obligation to sell
- $5 birthday coupon plus ongoing rewards
$20/yr, Dealer #1243776, ships US & Canada
Business Opportunity
Interested in Selling AMSOIL Instead of Just Buying It?
AMSOIL Dealers pay the same wholesale price as Preferred Customers and can also earn commissions on every sale. No quotas, no inventory requirements to start.
More Guides & Comparisons
Disclaimer: Prices verified directly from amsoil.com at the time of writing (September 2026) and subject to change without notice; always confirm the current price in your cart before purchasing. Package sizes and pricing not independently verified in this guide are marked as such rather than estimated. AMSOIL and all brand names referenced are registered trademarks of their respective owners. Lube Oil Sales is an Authorized AMSOIL Independent Dealer (Dealer #1243776). This page contains affiliate links.