Engine oil and cold weather don't mix well. Here's why viscosity matters, how cold affects oil flow, and how the right oil can protect your engine all winter.

There are many reasons why it's better to let your car's engine cool down before checking the oil level with the dipstick or when draining or changing the oil. Hot synthetic oil could reach over 200 ...

You're on a long drive, the oil light flickers on, and you pull over to check the dipstick. It's low, but the engine's hot. Should you wait for it to cool down, or top it off before it becomes a ...