Skip to main content

The Best Priced 100% Synthetic Value

AMSOIL 5W-30 100% Synthetic High-Mileage Motor Oil

Save More in the Sioux Falls store when you Join!

If you buy in the Sioux Falls AMSOIL store become a PC and save!

Look up your Oil, Filters and Save 25%

Free Catalog

See the Latest Products and Preferred Customer Pricing.

Get Catalog
Vehicle Look-Up Guides

Match AMSOIL to your Equipment. Get Filter Numbers

Look-Up
Wholesale Buying Deal

Local or Out of State - Get AMSOIL at Cost (PC Pricing)

No More Retail

Customer Reviews

My zero turn had 1000 hrs and one side was significantly less powerful than the other and would not back up on an incline. I had to remove the units to drain the original oil as they were not designed for oil changes. I drained them and added Amsoil and it breathed new life into both sides after only a few minutes of driving. One side is still stronger than the other but both work significantly better and I’m hoping to get several more mowing seasons out of them now. I will be using this in all future zero turns and recommending it to my friends.

Noticeable Improvement - Hydrostatic Fluid 20W-50

Common Fixes for a Transmission that Jer...

Written by Ches Cain
Common Fixes for a Transmission that Jerks or Hesitates

Common Fixes for the Shuddering Transmission We get a lot saying our ATF solves the problem after trying about everything else! Here are a few common reasons why your transmission may shift erratically, jerk or hesitate. Low fluid level Depleted fluid frictional properties Poor cold-temperature fluidity   Start with the easiest fix There’s an old […]

Transmissions
Read More

Mechanicals 101 – What is Antilock Brake

Written by Charleen
Mechanicals 101 – What is Antilock Brakes and How Does ABS Work

What Exactly is Antilock Brakes in a Car? ABS stands for Antilock Braking System (antilock brakes). This system prevents your brakes from locking up, providing better control while braking. by Mr. Nelson | January 27, 2022 Antilock Braking System Overview ABS brakes do what the name implies – they keep your brakes from locking up […]

Knowledge Base
Read More

MUSCLE CAR MANIA: Chevy* Power

Written by Charleen

MUSCLE CAR MANIA: Chevy* Power We look under the hood at classic Chevy muscle car engines and the products to protect them. _by Brad Nelson|March 1, 2024 The glory days of the muscle-car era were fueled by a war between American automakers for stoplight-to-stoplight power and speed. The victors were speed demons who craved increasingly […]

Auto Enthusiasts
Read More

Team AMSOIL Takes on 2024 King of the Ha...

Written by Charleen

Team AMSOIL Takes on 2024 King of the Hammers _by Lindsay Tousignant|January 26, 2024 Bragging rights and a case of beer Each year, tens of thousands of hardcore spectators and nearly 1,000 competitors flood Johnson Valley to create the city affectionately known as “Hammertown.” Its off-grid location emulates “Mad Max,” setting the stage for what […]

Racing
Read More