Maintaining your heavy-duty truck according to manufacturer recommendations is crucial for optimal performance and longevity.
Recommended Service Intervals
Refer to the table below for Mack and Volvo truck service intervals. Drivers may consider scheduling maintenance earlier than recommended to ensure uninterrupted operation.
| Normal – Heavy Duty | Severe Duty | |
| Chassis Lube | 15,000 mi | 10,000 mi |
| Battery Service | 6 months | 6 months |
| 3-Axle Alignment | Every 12 months | Every 12 months |
| Oil Change/B Service | 45,000 mi or 1,300 hours | 35,000 mi or 825 hours |
| Air Filter Fuel Tank Vent | 12 months | 6 months |
| Air Dryer Filter | 150,000 mi | 100,000 mi |
| Power Steering Fluid/Filter | 150,000 mi | 150,000 mi |
| Valve Adjustment | 150,000 mi then every 300,000 mi | 150,000 mi then every 200,000 mi |
| DEF System Service | 150,000 mi | 150,000 mi |
| AHI Clean/Replace (7th Injector) | 150,000 mi | 100,000 mi |
| DPF Filter Clean/Bake | 400,000 mi | 250,000 mi |
| Coolant Filter Replace | 300,000 mi | 150,000 mi |
| Coolant Replace | 750,000 mi | 750,000 mi |
| Transmission Filter/Fluid Replace | 500,000 mi or 60 months | 250,000 mi or 60 months |
| Fan/Accessory Drive Belt Replace | 300,000 mi | 150,000 mi |
| Differential Oil Replace | 250,000 mi | 150,000 mi |
Expert Truck Service at TEC Equipment
At TEC Equipment, we provide expert service for all truck makes, specializing in Mack and Volvo. Our team ensures your truck gets the care it needs, with proactive maintenance reminders to keep you on schedule.
Maximize Equipment Longevity
Regular maintenance is key to extending your truck’s lifespan. Following the manufacturer’s recommended schedule helps prevent costly breakdowns and keeps your equipment performing at its best.
Maintenance Based on Usage
Service needs vary by usage. Normal to heavy-duty operations require less frequent maintenance, while severe-duty use demands more attention. The most frequent services include oil changes and battery checks—ensure your battery is inspected every six months to avoid unexpected failures.
Schedule Service with TEC Equipment
Minimize downtime with our flexible service scheduling. Our certified technicians handle everything from routine maintenance to complex repairs, so you can stay focused on the road. Call your nearest TEC Equipment location to book your next service today!
