Signature Series cleans up the competition In general, the higher an oil’s TBN, the better its ability to neutralize contaminants such as combustion by-products and acidic materials. Higher TBN oils neutralize a greater amount of acidic material, which results in
A closer Look At Engine Sludge
How Engine Sludge Forms. And How To Prevent It.
How Engine Sludge Forms. And How To Prevent It. John Baker|Jul 24, 2019 4:20 PM Engine sludge. It’s a back gelatinous substance that wreaks havoc in engines. And long before the engine’s demise, engine sludge can foul engine sensors and
Signature Series Battles Sludge
Toyota ‘Workhorse’ Clocks More Than 500,000 Miles
Toyota ‘Workhorse’ Clocks More Than 500,000 Miles Fraser is a satisfied long-term PC who uses AMSOIL lubricants in all of his vehicles and equipment. Preferred Customer Brock Fraser of Las Vegas counts on his 1998 Toyota Tacoma to keep his



