If the engine is a car’s heart beat then fuel and a good engine lubricant is its lifeline. The engine oil you use determines how long your car will serve you. This Royal Purple Vs Mobil 1 comparison review has more. Good lubricants/engine oil help car owners cut down car maintenance costs because they need fewer oil changes. Royal purple and Mobil 1 are among the most … [Read more...] about Royal Purple Oil Vs Mobil 1 – Which Brand Extends Your Car Engine’s Life Better?