Carlube Triple R 20W-50 R-Tec 38 mineral oil is formulated using the highest quality blend of mineral based oils. Mineral oils are mixed with advanced technology additives to give high anti-wear and detergency properties, thus providing longer engine life. This oil offers strong corrosion protection, excellent wear protection, and excellent oxidation protection. Always consult your manufacturer's manual for the best guidance on when to change your engine oil and what type of oil to use. To check the oil level, ensure your car is on level ground and the engine is cool and not running. Locate the oil dipstick, pull it out, clean it, and reinsert it fully. Remove it again to check the oil level against the markers. If the oil is below the low marker, top up with the manufacturer's recommended grade. Alternatively, book your vehicle for an oil change at your local garage.