Preventative Maintenance Keeps Your Fleet Moving
Unexpected truck breakdowns cost time, money, and lost business. The best way to avoid expensive repairs and downtime is with regular preventative maintenance. O & O offers on-site preventative maintenance services, helping fleet owners and independent operators extend the life of their diesel trucks and prevent costly failures before they happen.
Our 21-point inspection and routine maintenance services ensure your Isuzu, Mitsubishi Fuso, Hino, UD (Nissan Diesel), and GMC trucks stay in peak condition.
Fleet downtime Hurts your business
Skipping routine maintenance leads to:
Increased repair costs due to unnoticed wear and tear
Unplanned downtime that delays deliveries and operations
Shortened vehicle lifespan, leading to premature replacements
DOT compliance failures, putting your trucks out of service
Comprehensive Diesel Truck Preventative Maintenance
O & O provides on-site diesel maintenance tailored to your fleet's needs. We follow a proven preventative maintenance process that covers:
21-Point Preventative Maintenance Inspection
Our detailed 21-point inspection ensures all critical components of your truck are in working order. This includes:
Engine oil, fuel, and coolant condition
Brake system and air pressure checks
Transmission and driveline inspection
Suspension and steering component review
Exhaust system and emissions check
Oil & Filter Changes
Regular oil and filter changes are essential to engine health. We service:
Engine oil, fuel, and coolant condition
Brake system and air pressure checks
Transmission and driveline inspection
Suspension and steering component review
Exhaust system and emissions check
Greasing & Lubrication
Proper lubrication prevents excessive wear and extends the life of key truck components. We grease and lubricate:
U-Joints and kingpins
Reduces friction and enhances steering performance
Chassis components
Prevents metal-to-metal wear and premature part failure
Fluid checks & Top-offs
We inspect and refill all essential fluids to prevent overheating, brake failure, and power steering issues:
Coolant
Maintains optimal engine temperature
Power Steering Fluid
Ensures smooth steering and control
Brake Fluid
Keeps the brake system responsive and safe
Transmission Fluid
Prevents gear slipping and costly transmission failures
Belt & Hose Inspections & Replacements
Worn-out belts and hoses are a leading cause of roadside breakdowns. We inspect for:
Cracks, leaks, and fraying
Cooling, Fuel, and Exhaust System Fixes
Loose or misaligned belts
Trusted by fleet owners & independent operators across South Florida
O & O has helped businesses across Miami-Dade, Broward, and Palm Beach reduce downtime, save money, and keep their trucks running smoothly.
What fleet owners are saying
The most reliable and honest experience I've ever had with a mechanic. Oscar is amazing at his craft and a pleasure to work with.
Mateo Cardona
Cooling Power Corp has started working with O&O now and could not be happier with there service, customer support and professionalism.
Marcelo Gonzalez
O & O always takes great care of our trucks! Excellent service, on time every time we need them!
Bart Cox
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5 Common Diesel Truck Issues That Can Shut You Down
Learn how to avoid costly breakdowns and prevent downtime with expert maintenance tips from O & O's certified diesel mechanics.
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