How to reach us

We love to answer your questions or furnish any price quotes based on your needs or just call 605-274-2580.

AMSOIL products are just a phone call away as we ship daily so if you are outside of the area no sweat! We use Speedee Delivery in the upper Midwestern states. No one can beat their rates. I use UPS for others using AMSOIL’s warehouses (Just $14 flat rate and free after $400 in product).


Our new location is 47073 98th St.

Sioux Falls, SD 57108

Easy way – Just Search Google: “Synthetic Warehouse Sioux Falls” and you will see our Google Local listing with map, hours, etc..

Take the Tea exit, go east under the I29 overpass and take the first left after Marlins (Albers Rd.) then the next left – you will see our building as the 3rd unit on the left. Orange stripe and look for the AMSOIL van.

Store Hours:

Tuesday Through Friday 8:30 to 5:30 (often staying later) – Occationally closed on Wednesday working in Omaha.

Saturday: 9 AM to 3:00 PM

Sunday and Monday – Closed but sometimes I’m open Mondays

Stan Houston’s on W. 12th St – Our alternate location!  Adding items per demand – Check it out. They are open Monday through Saturday.

Delivery available. We suggest you call a day in advance but the sooner the better. 6-quart minimum.