L15B (pre-2019)
Honda · 1.5L VTEC Turbo I4
2015–2019
"Oil dilution in cold climates — fuel mixes with engine oil. Widespread in northern markets. Software update helps partially."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 3
Oil dilution — fuel in oil (cold/short trips)
▸Oil level rises, oil smells of fuel, poor fuel economy
Fuel condenses in oil on cold/short trips. 2016-2018 CR-V/Civic worst. Software update + extended warranty issued.
GREECE-SPECIFIC: Much less concern than Northern Europe due to warm climate. Athens never truly cold. Low risk for Greek buyers but check service history for oil dilution records.
Head gasket failures — 2018-2024 Accords
▸Coolant loss, overheating, milky oil
Active lawsuits. 2018-2024 Accord L15B most affected. 40k-90k mile range.
Check any Accord for coolant condition. Pre-purchase coolant test recommended.
Carbon buildup (DI)
▸Rough cold idle, hesitation
Standard DI issue.
Warm Greek climate reduces buildup. Clean at 80-100k km if symptoms.
Models with L15B (pre-2019) 4
Other Honda Engines
Tuning Potential
200hp Stage 1
Frequently Asked Questions
Is the Honda L15B (pre-2019) reliable?
The Honda L15B (pre-2019) scores 65/100 with a verdict of CAUTION. It has 3 documented issues with total repair costs between €2,300 and €6,600.
What are the common problems with the L15B (pre-2019)?
The most common issues are:
- Oil dilution — fuel in oil (cold/short trips) — high, repair cost €0–€2,000, 0 km–80,000 km
- Head gasket failures — 2018-2024 Accords — high, repair cost €2,000–€4,000, 40,000 km–90,000 km
- Carbon buildup (DI) — minor, repair cost €300–€600, 80,000 km–150,000 km
What cars use the Honda L15B (pre-2019)?
The L15B (pre-2019) is found in:
- Accord 1.5T (2017–2019)
- CR-V 1.5T (2017–2019)
- Civic 1.0 VTEC Turbo (2016–2019)
- Civic 1.5 VTEC Turbo (2015–2019)
How much does it cost to repair the L15B (pre-2019)?
Total potential repair costs for all 3 known issues range from €2,300 to €6,600. The most expensive issue is typically .
What years was the L15B (pre-2019) produced?
The Honda L15B (pre-2019) was produced from 2015 to 2019. It is a 1498cc I4 petrol turbo engine.
Verdict and scores are editorial opinions based on aggregated data. Learn about our methodology. Not a substitute for professional inspection.