ravenol

A new line of bio based engine and gear oils have appeared on Ravenol's site. Here's a broad description of these engine oils, as they seem common across them: "[This oil] is a modern, full synthetic fuel-efficent multigrade engine oil based on renewable vegetable raw materials. [This oil] is...

In the car communities I frequent, many people are on the hunt for the elusive 'unicorn oil'—an oil that doesn't get consumed over the oil change interval (OCI). I've noticed that different brands of oil, even when they share the same viscosity grade, show varying levels of consumption over the...