TORQ TURBO 10W-40 CI-4 SYN is an advanced semi synthetic heavy duty diesel engine oil. TORQ TURBO 10W-40 CI-4 SYN has exceptional anti-wear properties to prolong engine life. Advance detergency results in cleaner and more efficient engines. Superior TBN retention coupled with the above features leads to extended drain intervals as per the manufacturer’s recommendations. Ideally suited for modern heavy duty vehicles.