Transportation & Industrial Lubricants
Sinclair Lubricants
An HF Sinclair Brand
Sinclair Lubricants delivers a complete line of engine oils, hydraulic fluids, gear oils, greases, and coolants for fleets, farms, job sites, and plants. Leahy-Wolf brings the Sinclair lineup to your operation with local supply and hands-on technical support.
Industries Served
Fleet & transportation
Over-the-road trucks and service fleets
Agriculture
Tractors, combines, and farm equipment
Construction & mining
Off-road equipment in severe duty
Manufacturing
Gearboxes, hydraulics, and plant equipment
Sinclair Product Lines
One brand for the engines, drivetrains, hydraulics, and cooling systems you rely on
Extra Duty Heavy-Duty Engine Oil
API CK-4 licensed synthetic blend diesel engine oil built for on-highway fleets and off-road equipment, with strong protection against wear, soot, and oxidation.
- API CK-4 licensed
- Synthetic blend
- SAE 15W-40 and 10W-30
- Mixed-fleet friendly
Tractor Hydraulic Fluids
Dinotech THF and Universal Tractor Hydraulic Fluid serve the shared transmission, final drive, wet brake, and hydraulic systems found in farm and construction tractors.
- Dinotech THF
- Universal Tractor Hydraulic Fluid
- Wet brake chatter control
- Transmission + hydraulic duty
Industrial Gear Oils
From conventional SL Industrial EP Gear Oil to the synthetic Syngear PG and Syntek HT families for high-temperature and heavily loaded gearboxes.
- SL Industrial EP Gear Oil
- Syngear PG synthetics
- Syntek HT high-temperature
- Extreme-pressure protection
Greases
The Superfilm line and SL AF Lithium Plus series cover chassis, bearing, and high-temperature points across trucks, equipment, and plants.
- Superfilm C-X-2 / Hi-Temp / HMA
- SL AF Lithium Plus
- Moly Hi Temp 2-Black
- Water and heat resistance
Antifreeze & Coolants
Heavy-duty and extended-life coolants, including NF ELC, ELC Long Life Coolant, Trihibitol, and the Polar series, to protect cooling systems year-round.
- NF ELC
- ELC Long Life Coolant
- Trihibitol
- Polar series
Specialty Lubricants
Passenger car motor oils, industrial hydraulic fluids, metalworking fluids, wireline lubricants, and food-grade lubricants round out the Sinclair lineup.
- Passenger car motor oils
- Industrial hydraulic fluids
- Metalworking fluids
- Food-grade lubricants
Always confirm the equipment manufacturer's specification before changing products. Ask about a product match
Why Sinclair?
- Part of the HF Sinclair family of brands, alongside Petro-Canada Lubricants
- Full transportation and industrial lineup from one supplier
- API CK-4 licensed Extra Duty heavy-duty engine oil
- Dedicated tractor hydraulic fluids for agriculture
- Local supply, bulk delivery, and oil analysis support from Leahy-Wolf
Consolidating your lubricants?
Send us your equipment list and current products. Our team will cross-reference them to the right Sinclair products and can set up oil analysis to confirm performance in service.