2018 Honda CR-V Extended Warranty: What 2018 Owners Need to Know
The 2018 Honda CR-V launched the 5th generation with the all-new 1.5T turbocharged engine, bringing improved performance and fuel economy to Honda's best-selling SUV. However, the 1.5T engine's first-year implementation came with a significant problem: oil dilution in cold climates. In 2026, 2018 CR-Vs are 8 years old with all factory warranty expired — and oil dilution-related engine wear is becoming increasingly apparent.
Quick Answer
The 2018 CR-V's 1.5T engine oil dilution issue is one of the most documented first-year reliability problems in recent Honda history. All factory warranty expired by 2023. Key risks: engine internal repair from oil dilution damage ($3,000–$7,000+), CVT transmission ($3,500–$5,200), and A/C compressor ($900–$1,500). Athena covers all with a $100 deductible.
Key Takeaways
- 1The 2018 CR-V's 1.5T oil dilution issue is the most significant reliability concern specific to this model year.
- 2Cold-climate owners face higher risk — gasoline enters the crankcase and dilutes engine oil.
- 3All factory warranty expired by 2023 for 2018 CR-Vs — every repair is the owner's responsibility.
- 4CVT transmission failure is the most expensive potential repair ($3,500–$5,200).
- 5A/C compressor failure is the most common non-powertrain repair.
2018 Honda CR-V: 5th Generation Launch with 1.5T Engine
The 5th-generation CR-V debuted in 2017 as a 2017 model, with the 2018 CR-V representing the first full model year of the redesign. Honda replaced the previous naturally aspirated 2.4L engine with a 1.5L turbocharged 4-cylinder shared with the Civic Type R and Accord. The 1.5T offered improved fuel economy and similar power to the old 2.4L, but introduced a reliability concern that would overshadow the model year's otherwise positive reception.
The 1.5T oil dilution issue — where gasoline enters the crankcase during cold starts and short trips — was identified in consumer complaints, reported in the automotive press, and prompted a formal recall in Canada. In the United States, Honda issued a technical service bulletin with a software calibration update, but stopped short of a recall.
Known Issues Specific to 2018 Honda CR-Vs
1.5T Oil Dilution — The Primary Concern
The 2018 CR-V's oil dilution issue occurs because the 1.5T's direct injection and turbocharging system allows unburned gasoline to enter the crankcase during cold-weather operation, particularly on short trips where the engine doesn't reach operating temperature. This:
- Reduces oil viscosity and lubrication effectiveness
- Accelerates bearing and cylinder wall wear
- Creates a fuel smell from the oil dipstick
- Can cause oil level to appear higher than expected (fuel mixing with oil)
Long-term consequences: engine bearing damage, cylinder wall scoring, and turbocharger shaft bearing wear. Engine rebuild or replacement: $3,000 to $7,000+. Turbocharger replacement: $1,800 to $3,000.
Honda Canada issued a voluntary recall (14V-030) for 2017–2018 CR-V models with the 1.5T engine, providing a software update to reduce oil dilution frequency. In the United States, Honda issued TSB 19-025 for the same issue but did not issue a formal recall. The Canadian recall affected approximately 80,000 vehicles. NHTSA received over 500 oil dilution complaints for the 2018 CR-V specifically.
CVT Transmission Shudder and Failure
The 2018 CR-V's CVT (paired with the 1.5T) is subject to the same shudder complaints documented in the Honda Accord's CVT. At 80,000+ miles, mechanical CVT wear requires more invasive repair. Full CVT replacement: $3,500 to $5,200.
A/C Compressor
A/C compressor failure is the most common non-powertrain repair on 5th-gen CR-Vs. Compressor replacement: $900 to $1,500. Full system repair: $1,500 to $2,200.
Honda Sensing Sensor Failures
Athena Auto Protection
Cap Your Repair Risk at $100
- $100 flat deductible — every repair, every time
- Claims paid directly to the shop within 48 hours
- Coverage available in 48 states
Honda Sensing (standard on all 2018 CR-V trims) radar and camera failures cost $800 to $2,500 to repair or replace.
Honda Canada issued a voluntary recall for 2017-2018 CR-V models with the 1.5T engine, providing a software update to reduce oil dilution frequency, affecting approximately 80,000 vehicles. In the United States, NHTSA opened a Preliminary Engineering Analysis (PE18-002) in response to oil dilution complaints but closed the investigation after determining the condition did not meet the threshold for a formal recall under U.S. safety standards — a decision that drew criticism from consumer advocacy groups who noted the identical regulatory response between U.S. and Canadian regulators despite similar failure rates.
Factory Warranty Status for 2018 Honda CR-V
- 3-year/36,000-mile bumper-to-bumper — expired by 2021
- 5-year/60,000-mile powertrain — expired by 2023
- 8-year/150,000-mile emissions (limited)
Typical Repair Costs for a 2018 CR-V at Current Mileage
- Engine rebuild (oil dilution damage): $3,000–$7,000+
- Turbocharger replacement: $1,800–$3,000
- CVT replacement: $3,500–$5,200
- A/C compressor + system: $900–$2,200
- Honda Sensing radar: $800–$2,500
- Alternator: $450–$750
Recommended Coverage for 2018 Honda CR-V
- Deluxe Coverage — Covers CVT, engine internals, turbocharger, A/C, electrical, and steering. Highly recommended for 2018 CR-V owners given the oil dilution background.
- New Car Coverage — Near-complete protection including Honda Sensing. Best for cold-climate 2018 CR-V owners who have experienced oil dilution and want maximum coverage.
Links to Full Guides
See the full Honda CR-V Extended Warranty guide and the Honda CR-V vehicle page.
Sources & Methodology
Last Updated: April 2026
RepairPal: Honda CR-V 2018 repair cost estimates and reliability data
NHTSA: Honda CR-V 2018 1.5T oil dilution complaint data and TSB records
Consumer Reports: Honda CR-V 2018 reliability ratings and 5th-generation launch survey
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- $100 flat deductible — every repair, every time
- Claims paid directly to the shop within 48 hours
- Coverage available in 48 states
About the Article Author
Steven Telle
Chief Operating Officer
Steven oversees daily operations, claims processing, and the concierge support teams at Athena. He brings deep experience in warranty administration and service contract compliance, ensuring every customer interaction meets the highest standard of transparency and speed.