How often should I change diesel oil?

Intervals vary by engine, duty cycle and oil type. We help you set the right schedule and can use oil analysis to optimize it.

Do you service DEF systems?

Yes. We service diesel exhaust fluid systems and can diagnose DEF quality and dosing faults.

DIESEL

Diesel Service

Oil & Fluid Service

Full-service oil, coolant and fluid changes.

Clean oil and fresh fluids are the lifeblood of a diesel powertrain. We perform heavy-duty oil changes, coolant flushes, DEF service and drivetrain fluid changes using premium-grade lubricants engineered for diesel engines and high mileage.

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What's Included

Heavy-duty diesel oil and filter changes
Coolant flush and cooling system service
DEF (diesel exhaust fluid) service
Transmission and differential fluid changes
Fuel filter and water-separator service
Fluid analysis and condition reporting

When You Need It

Signs You Need This Service

Service Interval Reached

Hitting your mileage or hours interval is the right time for fresh oil and fluids.

Dirty or Low Fluids

Dark oil, low coolant or contaminated fluids signal it is time for service.

Preparing for a Long Haul

Fresh fluids before a major trip protect your powertrain when it matters most.

Why MR. T

The MR. T Difference

Premium-grade diesel lubricants and fluids
Proper disposal and environmentally responsible service
Quick turnaround to keep you on schedule

See the truck brands we service

Frequently Asked

More Services

Other Diesel Services

Diesel Engine Diagnostics Brake Systems DOT Inspections Preventive Maintenance Fleet Care Plans Electrical Diagnostics

Keep Your Trucks Moving. Talk To Us Today.

Request service online or call our dispatch line now. Certified diesel techs are standing by 24/7.

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