2018 Honda Odyssey — Full Specifications
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Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.
The 2018 Honda Odyssey is a van/minivan powered by a 3.5L 6-cyl regular gasoline engine. It returns around 26 mpg (UK) / 22 mpg (US EPA) combined. Owners often keep a Honda Odyssey workshop manual to hand for servicing and repairs.
Compared with the 2017 Honda Odyssey: Fuel economy is essentially unchanged at around 26 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine | 3.5L 6-cyl |
|---|---|
| Transmission | Automatic (S10) |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | Van/Minivan |
| Fuel Economy (UK) | 26 combined / 23 urban / 34 extra-urban mpg |
| Fuel Economy (US EPA) | 22 combined / 19 city / 28 highway mpg |
| CO₂ Emissions | 245 g/km |
| EPA Greenhouse Gas Score | 4 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $3,050 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 2 configurations for the 2018 Honda Odyssey, all with the 3.5L 6-cyl engine. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 3.5L 6-cyl | Automatic (S10) | Front-Wheel Drive | 26 | 22 (19/28) | 245 | $3,050 |
| 3.5L 6-cyl | Automatic (S9) | Front-Wheel Drive | 26 | 22 (19/28) | 252 | $3,050 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
Owner Essentials for the 2018 Honda Odyssey
Running Costs: 2018 Honda Odyssey
Covering around 8,000 miles a year in a 2018 Honda Odyssey at 26 mpg combined, expect roughly 1,399 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,050 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Planning a road trip? Grab a road trip packing list. Only need this car occasionally? See our buy vs rent comparison.
2018 Honda Odyssey Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 16 safety recall campaigns that include the 2018 Honda Odyssey (as of 6 October 2026). Most affected areas: Back over prevention (3), Air bags (2), Fuel system (2). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Back over prevention — campaign 26V423000, reported 1 July 2026. Risk: A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.
- Air bags — campaign 26V332000, reported 21 May 2026. Risk: Air bags that deploy unintentionally during a crash increase the risk of injury.
- Air bags — campaign 26V227000, reported 9 April 2026. Risk: Air bags that deploy unexpectedly can increase the risk of injury.
- Fuel system — campaign 23V858000, reported 18 December 2023. Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Showing the 4 most recent of 16 campaigns.
Owners have filed 993 complaints with NHTSA about the 2018 Honda Odyssey. The most-reported areas are Electrical system (258), Forward collision avoidance (201), Engine (189). Complaints include 14 reported crashes, 3 reported fires, 30 reported injuries, 3 reported deaths. That is well above the median of 234 complaints across the 17 Honda Odyssey model years in our data.
Used-buyer checklist for the 2018 Honda Odyssey
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (258 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Driver-assist sensors (201 owner complaints) — Check that driver-assist warning lights are off and sensors are clean and undamaged.
- Engine (189 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
- Transmission & drivetrain (165 owner complaints) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
How does the Honda Odyssey compare to similar van/minivans? For context, van/minivans in our database average around 24 mpg (UK) combined — this model's 26 mpg figure is 2 mpg better than that average. Its 245 g/km CO₂ figure is 47 g/km lower than the 292 g/km average for van/minivans on this site. This comparison is based on 157 van/minivans in our dataset.
Honda models in our database average about 35 mpg (UK) combined on their most efficient configuration; the 2018 Honda Odyssey's 26 mpg is 9 mpg below that make average. Its 245 g/km CO₂ figure is 48 g/km higher than the 197 g/km Honda average.
Of the 17 Honda Odyssey model years we cover, the 2018 is the most economical on its best configuration (26 mpg UK combined). See every Honda Odyssey year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2018 Honda Odyssey
Frequently Asked Questions
What engine does the 2018 Honda Odyssey have?
It's fitted with a 3.5L 6-cyl regular gasoline engine, paired with a automatic (s10) transmission.
What is the fuel economy of the 2018 Honda Odyssey?
The most efficient configuration returns around 26 mpg (UK) combined, or 22 mpg on the US EPA cycle.
How much does the 2018 Honda Odyssey cost to fuel per year?
The US EPA estimates about $3,050 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2018 Honda Odyssey have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 5 stars for frontal crash protection.
Does the 2018 Honda Odyssey have any recalls?
NHTSA lists 16 safety recall campaigns that include the 2018 Honda Odyssey (as of 6 October 2026). Most affected areas: Back over prevention (3), Air bags (2), Fuel system (2). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2018 Honda Odyssey?
Among the 993 owner complaints filed with NHTSA, the most-reported areas are Electrical system (258 complaints), Forward collision avoidance (201 complaints), Engine (189 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
Is the Honda Odyssey's fuel economy good for a van/minivan?
Yes — it returns around 26 mpg (UK) combined, against a same-body-style average of roughly 24 mpg among the van/minivans we track.