Oil that starts when Alaska doesn’t.
Independent AMSOIL Dealer for the 907. Signature Series synthetics that pump at forty below, last up to 25,000 miles, and ship from the closest warehouse — including Anchorage.
25,000
Mile drain interval
Signature Series, gasoline
−54°F
Diesel pour point
Max-Duty 0W-40
1972
First API synthetic
AMSOIL invented the category
25%
Wholesale vs retail
Preferred Customer pricing
Spec the machine
I need products for
AMSOIL.com lookup, tagged to dealer 1245102. Year, make, model — the right viscosity, filter, and capacity come back in one screen.
Car & Truck
Gasoline engines, daily drivers, and work pickups.
Diesel & Heavy Duty
0W-40 Max-Duty that cranks when 15W-40 will not.
Snowmobile
INTERCEPTOR® and DOMINATOR® 2-stroke. The bottles Alaska sleds run.
ATV & UTV
Formula 4-Stroke® 0W-40 and 10W-40 ATV/UTV oil. Wet clutch, muskeg, and a season of dust.
Motorcycle
Metric series. Wet clutch, shared sump, Honda to BMW.
Marine & Outboard
Salt, freshwater, and long idle days on the lake.
Small Engine
Generators, chainsaws, mowers, and shop tools.
Vintage & Classic
Filter and lubricant lookup for older iron.
Video · 1:00
Why choose AMSOIL? One minute from Superior, Wisconsin.
A quick look at how AMSOIL formulates, blends and tests its lubricants at its Superior, Wisconsin headquarters, and the 1972 oil that started it: the first synthetic motor oil to meet API service requirements.
The 907 problem
Most engine wear happens before the oil is warm.
Conventional oil carries wax. At twenty below that wax is a gel, and the first ten seconds after you crank are a dry start. AMSOIL was the first API-qualified synthetic in 1972 because chemically engineered molecules do not do that.
Fredric Riech specs the grade, the filter, and the interval for Mat-Su trucks, Interior diesels, sleds, and boats — then the order ships from the closest AMSOIL center. Call if you want a human instead of a lookup.
Cold-start gauge
Drag the temperature. This is an educational model of pour point and cold cranking — not a substitute for the OEM spec on your dipstick. AMSOIL pour points come from AMSOIL data bulletins; the conventional-oil values are illustrative.
-20°F
- Sluggish — wear window
Conventional 5W-30 (illustrative)
Illustrative values only. AMSOIL does not publish a conventional-oil figure; conventional oils contain waxes that thicken in the cold.
Illustrative pour point −22°F (not an AMSOIL figure)
- Pumps and protects
AMSOIL Signature Series 0W-20
No wax. Built to pump on a −40° morning and still hold a 25,000-mile drain.
Pour point −65°F (AMSOIL data bulletin G2880)
- Pumps and protects
AMSOIL Max-Duty 0W-40 Diesel
4X better cold-temperature performance than SAE 15W-40 oil in the ASTM D5293 Cold Cranking Viscosity test. The diesel grade for the Interior.
Pour point −54°F (AMSOIL data bulletin G3467)
Catalog
The oils we actually put in Alaskan engines
01
Signature Series
Up to 25,000 miles / 1 year
The flagship. 75% more engine protection against horsepower loss and wear than a leading industry standard requires. The oil people mean when they say AMSOIL.
02
XL Synthetic
Up to 20,000 miles or one year in normal service
A step up from conventional without the Signature Series interval. Strong cold flow, OEM-spec coverage, and a price that pays back on the second change. Severe service (commercial or fleet use, excessive idling, or frequent towing, hauling, plowing or dusty driving) calls for a shorter interval: AMSOIL lists up to 12,000 miles or one year. Follow AMSOIL’s severe-service recommendation or your manufacturer’s interval.
03
OE Synthetic
OEM drain interval
100% synthetic protection at the interval your owner's manual already calls for. The cleanest upgrade from whatever is on the parts-store shelf.
04
Signature Series Max-Duty Diesel
Severe-duty diesel service
0W-40 pours at −54°F and delivers 4X better cold-temperature performance than SAE 15W-40 oil in the ASTM D5293 Cold Cranking Viscosity test. Turbo cleanliness and soot control for work trucks that never see a garage.
05
Metric Motorcycle Oils
Up to 2× OEM / 1 year
The metric series: 10W-40 Metric is the bottle most Japanese and Euro bikes spec. Wet-clutch JASO MA2, no friction modifiers, shared-sump protection. 10W-30, 5W-40, and 15W-50 in the same family.
Preferred Customer
Pay dealer price. Skip the dealership.
$20 a year — or $10 for a six-month trial. Save up to 25% on every order. Free shipping on orders more than $100. Details and exclusions at AMSOIL.com.
Field notes
Guides from the shop
January 8, 2026
What viscosity actually starts at 20 below
0W is not a marketing flourish in the Mat-Su. A field guide to pour point, cold-cranking, and which AMSOIL grades belong in an Alaskan crankcase.
March 18, 2025
How to check power steering fluid (and when to change it)
Icy roads, heavy snow, and a pump that groans on the first cold turn. A 10-minute check that saves a $1,000 rack.
March 12, 2025
Fuel system maintenance is not optional on modern engines
GDI, turbos, and a winter of short trips leave carbon where port injection used to wash it off. Here is the cheap habit that keeps the check-engine light off.
March 3, 2026
Why synthetic beats conventional every time
Conventional oil is refined crude: wax, sulfur, and molecules that were never designed to lubricate. A synthetic is built for the job, which is why it starts at 40 below and can stay in for a year.
People also ask
Five questions before you buy AMSOIL
The same list AMSOIL Technical Services hears every week. Full answers live on Why AMSOIL — or open a panel here.
Warranty, drains, and mix rules