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2026 Ford Bronco Maintenance and Service Guide



Maintaining the mechanical integrity of a 2026 Ford Bronco requires a proactive service strategy, specifically for vehicles operating in the high-thermal and high-dust environments of Abilene, Texas. While the Bronco features an Intelligent Oil-Life Monitor (IOLM), the extreme duty cycles associated with off-roading and West Texas temperatures often necessitate a "Severe Duty" maintenance cadence. This guide provides the technical specifications required to preserve the longevity of your Bronco’s EcoBoost powertrain and 4x4 hardware.


Technical Service Intervals (Normal vs. Off-Road Duty)

Adhering to the "Severe Duty" schedule is recommended for Bronco owners who frequently engage the G.O.A.T. modes or travel on unpaved ranch roads.


Component / Service Normal Interval Severe Duty (Off-Road/Towing) Engineering Specification
Engine Oil & Filter Per IOLM (Up to 10k miles) 5,000 Miles / 6 Months SAE 5W-30 Full Synthetic
Engine Air Filter 30,000 Miles Inspect Every 5,000 Miles High-Efficiency Particulate
Transmission Fluid 150,000 Miles 60,000 Miles MERCON ULV
Transfer Case Fluid 150,000 Miles 30,000 Miles MERCON LV
Front/Rear Axle Fluid 150,000 Miles 30,000 Miles SAE 75W-85 Synthetic
Brake Fluid Every 3 Years Every 2 Years DOT 4 Low Viscosity
Spark Plugs 100,000 Miles 60,000 Miles Gap: 0.028" – 0.031"

Engine Oil Capacities and Specifications

For the 2026 model year, utilizing the correct oil volume is critical for maintaining variable cam timing (VCT) performance. The 2.7L EcoBoost, in particular, requires precise filling to ensure the integrated oil cooler and turbocharger feed lines are properly pressurized.

  • 2.3L EcoBoost I-4: 6.0 Quarts (SAE 5W-30)
  • 2.7L EcoBoost V6: 6.0 - 7.0 Quarts (Verify via Dipstick)
  • 3.0L EcoBoost V6 (Raptor): 7.0 Quarts (SAE 5W-30)
A ford service member performing a oil change

Post-Trail Maintenance Checklist

A 2026 Ford Bronco driving in the desert

Abilene drivers who frequent the local trails or work on regional ranches should perform a "Technical Sweep" after every off-road excursion. This includes inspecting the CV boots for tears, checking the airbox for dust ingestion, and verifying that the electronic locking differential breathers are clear of debris. Accumulation of West Texas silt in the radiator fins can lead to thermal throttling, so a low-pressure rinse of the cooling stack is recommended following any heavy dust exposure.


Specialized Bronco Service at Arrow Ford

The complex 4x4 systems and electronic sway-bar disconnects on the 2026 Bronco require factory-grade diagnostic tools for proper calibration. At Arrow Ford, our Ford-certified technicians utilize specialized equipment to ensure your Bronco’s software and hardware remain in peak trail-ready condition.

A ford serive member working under a ford vehicle


May not represent actual vehicle. (Options, colors, trim and body style may vary)