Engine oil color reveals its age, contamination level, and operating condition. Fresh oil is amber or light brown. Oil darkened to black but still translucent after a few thousand miles is normal.

Research led by scientists at Washington State University has revealed insights on how plants form a microscopic landscape of proteins crucial to photosynthesis, the basis of Earth's food and energy ...

Many car owners think oil only fails when the miles rack up. Wrong. Even when your ride sits for months, oil ages and degrade. Factors like exposure to condensation, temperature swings, and ...

A routine emissions test turned into a catastrophic engine failure for one Hyundai Palisade owner after a dealership ...

NEW DELHI — India could face serious economic repercussions as the United States considers a sweeping new sanctions bill that would impose a 500% tariff on countries importing Russian energy products.

From female scientists whose work was credited to men to ancient high priestesses, these women truly changed history-but were also overlooked by it.

Detailed price information for Mammoth Energy Services Inc (TUSK-Q) from The Globe and Mail including charting and trades.