Heavy duty engine oil

Heavy duty engine oil includes lubricants developed for commercial vehicles, trucks, buses and off-road equipment operating under sustained load. Heavy duty motor oil is used in diesel engines where dependable lubrication, cleanliness and wear control are essential for long service intervals and demanding transport, construction or fleet applications across varied operating conditions.

PRO-TEC IV 0W-20

PRO-TEC IV 0W-20

Fully Synthetic Motor Oil

PRO-TEC LA 40

PRO-TEC LA 40

Gas engine oil.

PRO-TEC NX 10W-40

PRO-TEC NX 10W-40

Fully synthetic "Low Saps" motor oil.

PRO-TEC NX 5W-20

PRO-TEC NX 5W-20

Fully Synthetic Motor Oil

PRO-TEC NX 5W-30

PRO-TEC NX 5W-30

Fully Synthetic "Low Saps" HD engine oil.

PRO-TEC S 5W-30

PRO-TEC S 5W-30

Fully synthetic longdrain motor oil.

PRO-TEC TD 10W-40

PRO-TEC TD 10W-40

Semi-synthetic motor oil.

PRO-TEC TD 15W-40

PRO-TEC TD 15W-40

Mineral motor oil.

PRO-TEC TD 15W-50

PRO-TEC TD 15W-50

Synthetic Based motor oil.

PRO-TEC TD 20W-50

PRO-TEC TD 20W-50

Mineral motor oil.

PRO-TEC TD PLUS 15W-40

PRO-TEC TD PLUS 15W-40

Mineral motor oil.

PRO-TEC TDS 10W-40

PRO-TEC TDS 10W-40

Synthetic Based motor oil.

PRO-TEC TDX 10W-40

PRO-TEC TDX 10W-40

Synthetic Long drain motoroil.

PRO-TEC TS 15W-40

PRO-TEC TS 15W-40

Synthetic Based motor oil.

PRO-TEC ULTRA 10W-40

PRO-TEC ULTRA 10W-40

"Low-Saps" mid drain engine oil.

PRO-TEC ULTRA 15W-40

PRO-TEC ULTRA 15W-40

"Low Saps" mid drain engine oil.

PRO-TEC X 10W-40

PRO-TEC X 10W-40

Fully Synthetic Motor Oil

PRO-TEC XTRA 10W-30

PRO-TEC XTRA 10W-30

Synthetic Based motor oil.

PRO-TEC XTRA 10W-40

PRO-TEC XTRA 10W-40

Synthetic Based motor oil.

PRO-TEC XTRA+ 5W-30

PRO-TEC XTRA+ 5W-30

Synthetic motoroil

Heavy duty engine oil for professional buyers

ARDECA’s heavy-duty engine oils category is intended for B2B purchasing and technical selection. The range shown on this page includes fully synthetic, synthetic-based and mineral heavy-duty engine oils. Professional buyers should compare the viscosity grade, product description, stated specifications and any available technical data sheet before selecting a product.

For procurement and stock planning, suitability must be assessed product by product. Where an approval, application or performance level is required, use only the information stated on the relevant product page or technical documentation.

Applications

These products are used for commercial vehicles and heavy-duty engine service where the selected product specifications match the equipment requirements. The category is relevant to fleet operators, workshops, transport companies, distributors and maintenance teams. Always follow the equipment or vehicle manufacturer’s recommendations and verify that the exact ARDECA product matches the required specification.

Packaging

Packaging availability can differ by product. Consult the individual product page or contact ARDECA for available pack sizes and purchasing formats.

Delivery speed

For availability, delivery options and lead times, contact ARDECA directly.

B2B lubricant support

This category helps professional buyers compare products within a defined application area while keeping selection tied to documented technical requirements. Use the product information and available technical data sheets for specification checks. Contact ARDECA for product availability, documentation and commercial details.


Frequently asked questions

This is designed for commercial diesel engines where the selected viscosity and approvals match fleet needs.

Fleet buyers should request the ACEA, API and OEM approvals used across their truck parc.

Yes, as long as the product matches the required specification and the target application.

This is selected to manage soot, wear and oxidation under loaded diesel service.

The best grade is the one that covers the broadest fleet approvals without compromising OEM fit.

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