Castrol RX Super Plus is high performance SA 15W-40, heavy-duty diesel engine oil.
Through a unique combination of performance additives Castrol RX Super Plus provides exceptionaly high temperature deposit and soot related oil thickening control, combined with superior levels of engine wear protection under severe operating conditions.
Australia's largest marine accessories retailer. Serving boat owners since 1962. With sixteen big supermarkets and mail order departments Australia wide Whitworths Marine & Leisure offers the best service, convenient locations, a huge selection of quality products, and unbeatable prices.