Factory maintenance schedule OEM · verified
Normal service, condensed from the factory interval matrix.
| At 160,000 mi | Universal Vehicle Operation (inspect idle speed) |
Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2006 Ridgeline.
Defined as a truck, the 2006 Honda Ridgeline pairs a 5-speed automatic transmission with EPA fuel economy ratings of 15/20/17 mpg and requires 4.5 quarts of 5W-20 API oil. In the context of the model's history spanning 2003 to 2026, this year generated 240 total owner complaints with air bags listed as the top complaint area alongside 14 recalls. While this volume is substantially lower than the 333 complaints recorded in 2017, it exceeds the model's lowest point of 2 complaints in 2015, placing the 2006 model firmly between the extremes of the vehicle's reliability history.
Fluid capacities, tune-up values and fuel economy at a glance.
Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.
From the factory this vehicle uses a BCI 24F · 550 CCA battery. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic 5-spd |
| Overall length | 206.7 in |
| Overall width | 76.8 in |
| Overall height | 70.5 in |
| Wheelbase | 122 in |
| Curb weight | 4504 lb |
| Track (front / rear) | 66.9 / 66.9 in |
| Weight distribution (front / rear) | 58/42 |
| EPA city / highway / combined | 15 / 20 / 17 mpg |
| Drivetrain | 4-Wheel or All-Wheel Drive |
| Recommended fuel | Regular Gasoline |
0–60 mph, quarter-mile, horsepower and torque from independent road tests.
Independent road tests for the Ridgeline of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.
| Year | Trim / engine | 0–60 | ¼ mile | HP | Drivetrain |
|---|---|---|---|---|---|
| 2006 | RTS 3.5L V6 | 7.90 sec | 16.30 sec | 255 hp | AWD |
| 2006 | RTL 3.5L V6 | 8.10 sec | 16.40 sec | 255 hp | AWD |
| 2006 | RTL 3.5L V6 | 8.50 sec | 16.50 sec | 255 hp | AWD |
| 2006 | RTL 3.5L V6 | 8.60 sec | 16.50 sec | 255 hp | AWD |
| 2006 | RTL 3.5L V6 | 9.30 sec | 17.20 sec | 255 hp | AWD |
| 2009 | RTL 3.5L V6 | 7.70 sec | 16.00 sec | 250 hp | AWD |
| 2012 | Sport 3.5L V6 | 8.00 sec | 16.30 sec | 250 hp | AWD |
| 2014 | RTL 3.5L V6 | 8.30 sec | 16.50 sec | 250 hp | AWD |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 4.5 qt of 5W-20 API engine oil, DOT 3 brake fluid. Torque lug nuts to 94 ft-lbs, the oil drain plug to 29.0 ft-lbs. The firing order is 1-4-2-5-3-6.
| Automatic Transmission Fluid | ATF |
| Automatic Transmission Fluid Capacity | 3.3-3.6 |
| Brake Fluid | DOT 3 |
| Differential Gear Oil Capacity | 5.5 Pints |
| Engine Oil | 5W-20 · API |
| Engine Oil Capacity | 4.5 qt |
| Transfer Case Fluid | GL-4 · GL-5 · 80W-90 |
| Transfer Case Fluid Capacity | 0.9 Pints |
| Engine Flywheel Bolts | 54 ft-lbs |
| Intake Manifold to Engine Bolts | 16 ft-lbs |
| Exhaust Manifold to Cylinder Head Bolts | 23 ft-lbs |
| Main Bearings | 11MM Bolts: 54 ft-lbs, 10MM Bolts: 36 ft-lbs |
| Engine Oil Pan Drain Plug | 29.0 ft-lbs |
| Oil Pump to Cylinder BLock Bolts/Studs | 9 ft-lbs |
| Lug Nuts | 94 ft-lbs |
| Transfer Case Fill Plug | 33.0 ft-lbs |
| Transfer Case Drain Plug | 33.0 ft-lbs |
| Automatic Transmission Drain Plug | 36.0 ft-lbs |
| Front Wheel Hub | 242 ft-lbs |
| Rear Wheel Hub | 181 ft-lbs |
| Cylinder Firing Order | 1-4-2-5-3-6 |
| Curb Idle Speed (No Load) | 730 rpm |
| Curb Idle Speed Variance (No Load) | 50 rpm |
| Spark Plug Manufacturer | NGK, DENSO |
| Spark Plug Gap | .039 |
| Spark Plug Torque | 13 ft-lbs |
| Spark Plug Manufacturer | NGK |
| Spark Plug Gap | 0.039-0.0.043 in |
| Refrigerant | R134a |
| Refrigerant Capacity | 1.27-1.38 lbs |
| Oil Type | PAG 46 |
| Oil Capacity | 6.00-6.50 oz |
| Standard BCI Group Number | 24F |
| Standard BCI Cranking Performance | 550 cca |
| Pressure Test | 14-18 psi |
| Radiator Cap Pressure Relief | 14-18 psi |
| Thermostat Opening Temperature | 169-176 °F |
| Regulated Fuel System Pressure (With Vacuum) | 57.0 |
| Engine Compression | 135 Minimum PSI. 28 Maximum variation PSI |
| Engine Oil Pressure | 10 psi @ idle, 71 psi @ 3000 rpm psi |
| Intake Valve Lash | 0.008-0.009 in |
| Exhaust Valve Lash | 0.011-0.013 in |
| Torque Caliper to Bracket | 53 ft-lbs / 16 ft-lbs |
| Torque to Knuckle | 101 ft-lbs / 80 ft-lbs |
| Minimum Pad Thickness | Front: 0.039; Rear: 0.039 in |
| Minimum Shoe Thickness | 0.039 in |
| Rotor Max Parallel Variation | 0.0006 in |
| Rotor Runout Limit | 0.0016 in |
| Rotor Nominal Thickness From | 1.098 in / 0.429 in |
| Rotor Nominal Thickness To | 1.102 in / 0.437 in |
| 1 | 14 ft. lbs., Step 2: 90 | 14 ft. lbs |
| 1 | 47 ft. lbs, step 2: 60 | 47 ft. lbs |
Normal service, condensed from the factory interval matrix.
| At 160,000 mi | Universal Vehicle Operation (inspect idle speed) |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
The 2006 Honda Ridgeline marks a pronounced spike in federal activity within its generation, with 240 complaints, 14 recalls, and 4 investigations—figures dramatically higher than the near-zero levels seen in 2003–2005 and significantly above the declining trend that follows through 2015. This surge reflects early production challenges, particularly in air bags (50 complaints) and electrical systems (35 complaints), alongside elevated crash (21) and fire (15) reports, though the data does not specify root causes. Subsequent years show a sharp drop in complaints and recalls, stabilizing at lower levels by 2009, suggesting Honda addressed many first-year issues through corrective actions. The 2006 model sits at the peak of this reliability arc, implying higher risk of unresolved defects compared to later years. While the Ridgeline’s overall durability remains strong, buyers should prioritize a meticulously maintained example with documented recall repairs. **Given the data, 2006 is a riskier year to buy—opt for a 2009 or newer model if possible.**
All 240 complaints on record, top 8 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 2 of 14 campaigns on record for this vehicle.
Honda (American Honda Motor Co.) is recalling specific 2003 Acura 3.2CL, 2013-2016 ILX, 2013-2014 ILX Hybrid, 2003-2006 MDX, 2007-2016 RDX, 2002-2003 3.2TL, 2004-2006, and 2009-2014 TL, 2010-2013 ZDX and 2001-2007 and… Remedy: Honda will notify owners, and dealers will replace the driver's air bag inflator with an alternate inflator, free of charge. The recall began April 10, 2019. Honda owners may…
Dorman Products, Inc. (Dorman) is recalling certain Accelerator Pedal Assemblies part numbers 699-114 and 825-5029-1, sold as replacement parts for 2003-2006 Acura MDX, 2004-2008 Acura TL and TSX, 2003-2007 Honda… Remedy: Dorman will notify owners, and qualified service facilities will replace the affected accelerator pedal assemblies, free of charge. The recall began December 9, 2019. Owners may…
Showing 5 of 110 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| A18-050 | 2026-06-30 | Air Bags | Service Bulletin - Warranty Extension: Customer Support Program For Front Passenger's… |
| A14-077 | 2026-01-27 | Suspension | Service Bulletin - A pop or clunk is heard from the rear suspension in cold weather going… |
| A21120A | 2023-06-13 | Electrical System | Service News - The navigation clock and date are incorrect. This is due to a limited GPS… |
| A22-021 | 2022-09-30 | Structure | Service Bulletin - (Repair Procedure and Parts Information Revision) In salt-belt states… |
| A20-015 | 2022-05-03 | Air Bags | Service bulletin - This bulletin is a notification of a class action settlement relating… |
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.
Cross-vehicle references for the kinds of data on this page.
4.5 qt of 5W-20 API, per the factory manual.
NHTSA lists 14 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 15 city / 20 highway / 17 combined mpg.