When we learned that the Amsoil Dual Remote Oil Filtration System, in combination with its full-synthetic 15-40 Heavy-Duty Diesel & Marine Motor Oil, could safely extend oil changes up to 60,000 ...

AMSOIL Signature Series engine oil is available in 5W-30, 10W-30, and 5W-50. There’s also extended-change interval synthetics from AMSOIL that enable you to go for longer periods of time between ...

Amsoil's ultimate aficionado DULUTH -- Albert J. Amatuzio will be memorialized and buried Saturday, April 15, little more than two weeks after the 92-year-old aviator and innovator died.

AMSOIL oil filters are manufactured in the U.S. by Champion Laboratories, a white-label manufacturer that also produces a couple of oil filter brands of its own (Champ and Luber-finer).

Amsoil Inc. of Superior announced a changing of the guard in management Tuesday, as its 91-year-old founder, Al Amatuzio, steps down from his post as president and CEO of the company.

According to a Duluth News Tribune article, AMSOIL Arena will host pre-tournament games before the 2026 IIHF World Junior Championship in Minneapolis and St. Paul.

“[Conventional] oil is better than it used to be,” said Ed Newman, advertising manager at Amsoil Inc., though he said it’s still more volatile than synthetic so it “boils off quite a bit ...

AMSOIL Industrial Synthetic Zinc-Free Hydraulic Oil (HSNZ) and AMSOIL Industrial Synthetic Multi-Viscosity Hydraulic Oil (HASZ) are both manufactured in state-of-the-art facilities to an ISO 4406 ...

SUPERIOR, Wis. — Amsoil Inc. has acquired Aerospace Lubricants Inc., a Columbus, Ohio-based producer of greases for industrial manufacturing operations and private-label customers in automotive, ...

We recently wrote a story on used oil analysis and we decided to test a few of the engines in our shop, ... Used Oil Analysis Sources. Amsoil (715) 392-7101; amsoil.com. Blackstone Labratories ...

Founded in 1954, STP initially produced just one product — STP oil treatment. Thanks to strong word-of-mouth advertising from satisfied customers and a following among auto racers that believed ...

Amsoil, a motor oil company, explains that oils are made up of two components: base oils and additives. These base oils are divided into five groups.