AMSOIL has updated a technical service bulletin outlining the importance of zinc and phosphorus content in motor oil used in engines with flat tappet camshafts. Read more

AMSOIL recently released a diesel engine oil designed for fleets and budget-minded diesel owners called OE 15W-40 Synthetic Diesel Oil. This product meets the latest API CJ-4 specification and is suitable for off-road, heavy-duty diesel applications, as well as diesel pickups from all model years. Here is Q&A article on this new product. Read more

AMSOIL has released a value-priced synthetic 15W-40 that meets the the latest diesel specifications. The new OE 15W-40 Synthetic Diesel Oil is formulated to meet the API CJ-4 specification as well as previous specs for all on and off-road applications. Read more

AMSOIL has released a new motor oil for breaking-in new or rebuilt high performance and racing engines. New AMSOIL Break-In Oil (SAE 30) is formulated without friction modifiers to safely and effectively hasten the break-in process. Read more

AMSOIL has released a new motor oil series that is laden with zinc and phosphorus for older cars and street rods. The new “Z-Rod” Synthetic Motor Oil Series is available in 10W-30 and 20W-50. This formulation will be especially attractive for applications with flat tappet cam engines. Read more