Triple R Carlube 5W-30 Fully Synthetic Engine Oil 5L Carlube Triple R 5W-30 R-Tec 21 is a super-clean, ultra-high performing low SAPS passenger car engine oil, designed to maintain engine efficiency by protecting against deposit formation, thereby ensuring piston cleanliness. Specifications: ACEA C3, API SN, MB 229.31 Triple R 5W-30 R-Tec 21 has been developed with low SAPS to protect expensive after-treatment devices. Incorrect lubricants can quickly block DPFs and poison SCRs devices, increasing exhaust back pressures and increase exhaust emissions. Triple R 5W-30 R-Tec 21 is fully compatible with exhaust after-treatment devices, supporting lower emissions and preventing expensive replacement costs or service bills. Exceptional performance when engines are coldest when at most risk