Rail & Locomotive Lubricants

TRUCK-GUARD: heavy-duty diesel engines

Diesel-powered rail equipment and support machinery need oils matched to the particular engine, emissions equipment and service pattern. TRUCK-GUARD offers mixed-fleet, low-ash and extended-drain technologies for suitable applications.

• TRUCK-GUARD 10W-30, 10W-40 and 15W-40: heavy-duty mixed-fleet engine oils.
• TRUCK-GUARD LS: low-ash options for suitable engines, including selected 10W-30, 10W-40 and 15W-40 formulations.
• TRUCK-GUARD PLUS and ELITE LS: options for equipment with manufacturer-supported extended servicing requirements.

Our technical team can review the locomotive, multiple-unit or auxiliary-engine requirements to identify an appropriate product and service plan.

ULTRA-HYD: depot and trackside hydraulics

Lifting equipment, maintenance machinery and other hydraulic systems need fluids that maintain dependable flow and component protection.

• ULTRA-HYD HLP: mineral hydraulic fluids for general applications.
• ULTRA-HYD HVI and HVI LL: high viscosity index options for cold starts and changing temperatures, with Group II-based long-life performance in HVI LL.
• ULTRA-HYD LL, ZF and ZF LL: long-life and zinc-free options for defined system requirements.
• ULTRA-HYD HLPD and FLYBRID HVI: detergent and fully synthetic options for suitable specialist systems.

The wider portfolio also includes biodegradable and fire-resistant fluids. Select the technology around the machinery specification and working environment.

KOOL-GUARD: cooling-system protection

Engine and auxiliary cooling circuits rely on the correct coolant to control temperature and protect system materials. KOOL-GUARD provides concentrated and ready-to-use products across conventional, organic-acid and hybrid technologies.

Options include MEG, XL, VCS, ELC and H-OAT, with other specialist formulations available in the wider range.

Match the coolant chemistry, concentration and performance specification to the engine or equipment requirements. Our technical team can help with selection and compatibility during a planned change.

COMPRESSOR-GUARD: compressed-air systems

Compressors serving rail equipment and depot operations require oils selected for the compressor design and duty cycle.

• COMPRESSOR-GUARD 2000: mineral oils for suitable rotary screw, vane and reciprocating compressors.
• COMPRESSOR-GUARD 5000: Group II oils for improved oxidation resistance.
• COMPRESSOR-GUARD 8000: synthetic PAO lubrication for demanding temperatures and loads.
• COMPRESSOR-GUARD AIR 12000: synthetic ester oils supporting resistance to varnish and deposit formation.

VACUUM-GUARD provides further options for suitable vacuum pump equipment.

Greases and exposed-component lubrication

Bearings, pins, bushes and linkages require products selected around load, speed, temperature, water exposure and the existing lubricant. Rock Oil can advise on grease choices for rolling stock and maintenance machinery.

For appropriate exposed industrial drives, the gear brochure includes OPEN GEAR COMPOUND, EXTROL OGG GREASE, PRO-GUARD 460 OGL 00 and PRO-GUARD 1000 CA-OG 2M. These provide different adhesive, load-carrying and application characteristics for defined equipment requirements.

Workshop care and condition monitoring

The wider maintenance range includes cleaning, degreasing, penetrating, corrosion-protection and anti-seize products for suitable workshop and exposed-component applications.

Rock Oil’s oil and grease analysis kits help maintenance teams assess lubricant condition, contamination and wear. Planned sampling and trend analysis can support servicing decisions alongside the equipment manufacturer’s guidance.

Our technical team can also help review lubrication requirements for generators, lifting equipment, depot machinery and service vehicles.