2.5 Million km of Engine Protection Proof with RX Super
The new Castrol RX engine oil range with Durashield™ Boosters has been upgraded and simplified.
Castrol’s upgraded RX Super to CJ-4. RX Super with DuraShield Boosters™ deliver up to 40% better wear protection. DuraShield Boosters™ actively work in two ways: fights soot agglomeration and provides a robust protective layer on critical moving engine parts.
Durashield™ Boosters are new technology, exclusive to Castrol. They’ve been specially engineered to fight wear, deposits and corrosion, the main causes of engine damage, to deliver superior protection in 3 ways.
Now proven in a customer's truck engine which ran for 2.5 million kilometres, serviced using only Castrol RX Super 15W-40.