GM truck loyalists are lining up behind an old-school idea for the next small block V8: bring back thicker oil. After years ...

GM Authority poll shows owners overwhelmingly want thicker 5W-30 or 0W-40 oil for next-gen V8s, citing durability over thin ...

Starting January 1, 2027, new heavy-duty diesel engines will hit the road. And when engines change, oil has to change with ...

While fresh oil is generally transparent and amber colored, black oil may mean it's time for a replacement and frothy oil can ...

API PC-12 engine oil categories CL-4 and FB-4 are advancing toward a 2027 launch. Here’s what the changes mean for fleets, ...

GM owners want thicker oil in the next-gen V8 due to reliability issues regarding thinner oil, which caused problems that led ...