Penrite Convoy DLA 10W-40 Engine Oil - Ultra high performance diesel engine oil Penrite Convoy DLA is a highly advanced, Full Synthetic, extended drain, mixed-fleet, ultra high performance Diesel (UHPD) 10W-40 engine oil. It is formulated with the highest standard synthetic base oil and advanced additives to ensure protection against wear, corrosion, oil oxidation and sludge. Convoy DLA 10W-40 is Licensed by the API (American Petroleum Institute) to meet CK-4 and CJ-4 specifications ensuring quality and satisfaction. It is OEM Approved by Mack, Volvo and Renault and exceeds European ACEA E6/E7/E9 requirements and many other manufacturer specifications. Need an engine oil for your truck, bus or other heavy equipment? Penrite Convoy is a range of heavy-duty fully synthetic engine oil and premium mineral engine oil for new and older model engines. From humble begginings in Melbourne, Australia in the 1920s, Penrite are one of the most recognisable lubrications suppliers and remain to be Australian made and owned to this day. With a wealth of lubrication solutions to suit all types of car, truck, bike and various other machinery, Penrite have the fluids to get your vehicle running smoothly, reliably and cleanly. Penrite oils have been tested, refined and perfected with lab testing and real-world circumstances which sees their oils pushed to their absolute limits all with the goal to look after your engine. Penrite also offer a range of gear oils, transmission fluids, engine additives and so much more.