2012 Acura RDX Owner's Manual - Page 426

Adding Engine Oil ENGINE OIL FILL CAP Reinstall the engine oil fill cap, and tighten it securely. Wait a few minutes, and recheck the oil level on the engine oil dipstick. Do not fill above the upper mark; you could damage the engine. Required Engine Oil Oil is a major contributor to your engine's performance and longevity. Your vehicle is equipped with a highperformance turbocharged engine that requires the use of synthetic motor oil. Always use Mobil 1® 5W-30 or an equivalent oil that meets the Acura HTO-06 standard. Not all synthetic oils will meet this standard. Only use oils that display the HTO-06 standard on the label. Failure to use Mobil 1® or an equivalent oil that meets the HTO-06 standard can lead to a reduction in engine performance or durability, and can cause engine damage not covered by your warranty. Unscrew and remove the engine oil fill cap on top of the valve cover. Pour in the oil slowly and carefully so you do not spill any. Clean up any spills immediately. Spilled oil could damage components in the engine compartment. 420