In semi-diesel fleet optimization and heavy-duty engine performance in Canada, MHPD (Mario High-Performance Diesel) sets the standard. Fleet operators demand power, reliability, and maximum operational uptime from each unit.

MHPD provides safe, consistent, diagnostic-based tuning, never generic stock files. With decades of expertise and leading technology, we help fleets boost fuel economy, minimize downtime, and optimize engine performance while maintaining emissions compliance. Fleets achieve smoother, stronger, and more durable performance.

How Fleet Tuning Works At MHPD

MHPD works with fleets of all sizes, from long-haul trucking companies to industrial transporters across Canada and the U.S. Whether your fleet includes 5 or 50 trucks, the process is the same: precise, clean, emissions-compliant tuning grounded in diagnostic data.

Fleet tuning by the MHPD team can be arranged in several ways. One option is to bring your units directly to our facilities in Edmonton or Acheson. Or visit an MHPD authorized dealer and remotely tune with MHPD tools.

Regardless of the approach, each truck receives tailored tuning designed to improve performance without compromising engine integrity.

What Fleet Tuning Actually Solves

Fleet operators have reported three main improvements after tuning their semi-diesel fleets with MHPD.

1. Increased Reliability

MHPD tuning sharply reduces roadside breakdowns and emissions-related derating. Many fleets seek us out due to frequent shutdowns. Our tuning stabilizes the ECM, ensuring the engine remains running, except in cases of genuine risk to the engine.

2. Consistency Across Every Unit

Fleets require uniform tuning to ensure collective performance. Inconsistent profiles can lead to issues such as sluggish units or excessive fuel consumption. MHPD delivers standardized, repeatable tuning across your fleet so drivers experience consistent operation in every unit.

3. Efficiency And High Performance

Semi-diesel fleet tuning produces strong torque curves, smoother power delivery, and often improves your fuel economy. Instead of chasing peak numbers, we’re focusing on the long term. We aim to reduce driver fatigue and help your fleet stay in the right gear.

Why Fleets Nationwide Trust MHPD

Fleets rely on MHPD for diesel tuning because of our approach. We will not tune trucks with mechanical problems or upsell unnecessary services. If your engine requires a sensor, wiring repair, or basic fix, we recommend addressing these issues before tuning. Many dealers join the MHPD network because they trust our transparent, integrity-driven methods.

Mario Monette leads the MHPD team, bringing 40 years of diesel experience, custom-built tuning tools, and dyno-verified calibrations. MHPD delivers custom data-proven performance to every engine we work on.

Lifetime Warranty & Long-Term Support

Every fleet tune comes with MHPD’s lifetime warranty. If a unit needs a replacement ECM (Engine Control Module), we’ll transfer the tuning at no cost. With your VIN (Vehicle Identification Number) and ESN (Engine Serial Number), we track all warranty claims to maintain accurate records, especially for large fleets. Updates, adjustments, and ongoing support are always included with your warranty.

If your diesel fleet needs more reliability, better efficiency, and consistent performance across every unit, don’t wait. Contact MHPD today to schedule your fleet consultation and experience the benefits firsthand.