Honda 1.5L Turbo Engine
Honda's 1.5L turbocharged four-cylinder powers the Civic, CR-V and Accord from 2016 onward. It is a strong, efficient engine, but it became known for fuel diluting the engine oil in cold climates. This page covers which years and models were affected, what Honda did about it, and how to identify the right variant for your car.
Need one now? See our Honda 1.5 turbo engines in stock, or text your VIN to +1 (361) 470-5276 and we'll confirm your exact variant.
Oil Dilution — what actually happened
On direct-injected turbo engines, some unburned fuel can wash past the piston rings into the crankcase. In short trips and cold weather the engine never gets hot enough to evaporate that fuel back out, so the oil level rises and the oil thins.
What owners noticed
- Oil level above the full mark on the dipstick
- A strong fuel smell on the dipstick
- In some cases rough running or a check engine light
Which vehicles were most affected
| Vehicle | Years | Complaint level |
| Honda CR-V 1.5T | 2017–2018 | Most affected by a wide margin |
| Honda Civic 1.5T | 2016–2018 | Affected, fewer reports |
| Honda Accord 1.5T | 2018+ | Least affected of the three |
Where it happened: cold-climate states and short-trip driving patterns. Warm regions saw far fewer cases.
What Honda did about it
Honda issued a service update including revised engine control and climate control software to bring the engine up to operating temperature faster, and extended warranty coverage in affected regions.
What this means for a used engine purchase
This is a fuel-and-heat management issue, not a block or bottom-end design fault. A unit that has had the software update applied and has documented oil changes is a reasonable buy. Ask us for the donor vehicle's service history before you order.
→ Browse tested Honda 1.5 turbo engines in stock
L15B7 vs L15BE — not the same engine
This trips up a lot of buyers.
| Code | Application | Years |
| L15B7 | Honda Civic (including Si) | 2016–2021 |
| L15BE | Honda CR-V | 2017–2022 |
| L15BE | Honda Accord | 2018–2022 |
They share a family and a displacement, but calibration, accessories, mounting and emissions hardware differ by application. Displacement alone tells you nothing. A CR-V engine is not a drop-in for a Civic.
Confirm the correct variant against your VIN before ordering. Text your VIN to +1 (361) 470-5276 and we'll decode it, or browse all Honda used engines to see what's available for your year.
Specifications
| Spec | Detail |
| Displacement | 1.5L / 91 cu in |
| Configuration | Inline 4, DOHC, 16 valves |
| Induction | Single turbocharger |
| Fuel | Direct injection |
| Block | Aluminum |
| Power | Roughly 174 – 205 hp by application |
| Production | 2016 – present |
Other Considerations
Direct-injection carbon buildup
Like all direct-injected engines without port injection, intake valve deposits accumulate over time and affect airflow and idle quality. Walnut blasting is the standard remedy.
Turbo condition
Ask about oil change history. Turbochargers are far less forgiving of extended oil intervals than naturally aspirated engines, and on this engine the oil dilution issue makes clean oil even more important.
Which Vehicles Use the Honda 1.5L Turbo
| Vehicle | Years | Code |
| Honda Civic (1.5T trims) | 2016–2021 | L15B7 |
| Honda Civic Si | 2017–2020 | L15B7, higher output |
| Honda Civic (11th gen) | 2022–present | Revised 1.5T |
| Honda CR-V (1.5T) | 2017–2022 | L15BE |
| Honda Accord (1.5T) | 2018–2022 | L15BE |
Which Years to Buy
- 2019+ any model — after the software update rolled out, with fewer dilution reports.
- Accord 1.5T — least affected of the three applications.
- 2017–2018 CR-V — most affected. Buy only with documented service history showing the update was applied.
Used Honda 1.5L Turbo Prices
| Application | Condition | Typical price |
| Civic 1.5T | Used, tested | $1,900 – $2,900 |
| CR-V 1.5T | Used, tested | $2,200 – $3,300 |
| Accord 1.5T | Used, tested | $2,700 – $3,500 |
Free freight to any US address — residential included. Most suppliers charge $150 or more for residential delivery.
→ Shop Honda 1.5 turbo engines — live prices and mileage
What's Included
Complete engine assembly: block, head, pistons, crankshaft, camshafts, timing components, valve cover and oil pan. Turbocharger, intake manifold and accessories are included where present on the donor unit at no extra charge, but are not covered under warranty.
You will typically transfer from your old engine: alternator, A/C compressor, starter, flexplate, sensors, and vehicle-specific brackets.
Shipping and Warranty
| Warranty | 6 months standard, parts and return freight. Extended to 3 years available. |
| Shipping | Free, all 50 states, residential and commercial |
| Prep time | 3–5 business days |
| Transit | 2–4 business days |
| Before shipping | We photograph your exact unit and send it for approval |
| Returns | 30 days, free return shipping |
Full terms: used engine warranty policy · shipping policy · returns and refunds
Frequently Asked Questions
What is Honda 1.5 turbo oil dilution?
Unburned fuel washes past the piston rings into the crankcase. In cold weather and on short trips the engine never gets hot enough to evaporate it back out, so the oil level rises and the oil thins. Owners typically notice oil above the full mark and a fuel smell on the dipstick.
Which Honda 1.5 turbo years are affected by oil dilution?
The 2017 and 2018 CR-V saw the most reports by a wide margin. The 2016 to 2018 Civic was affected with fewer complaints, and the 2018 onward Accord was the least affected. Cases concentrated in cold-climate regions and short-trip driving patterns.
Did Honda fix the oil dilution problem?
Honda issued a service update with revised engine and climate control software to bring the engine up to operating temperature faster, and extended warranty coverage in affected regions. Ask us about the donor vehicle's service history before you order.
Will a CR-V 1.5 turbo engine fit a Civic?
No. The Civic uses the L15B7 and the CR-V uses the L15BE. Despite the shared displacement, calibration, accessories, mounting and emissions hardware differ. We match by VIN specifically to prevent this mistake.
Is the Honda 1.5 turbo a good engine to buy used?
Yes, with the right checks. Oil dilution is a fuel and heat management issue rather than a bottom-end design fault. Look for documented oil change history, confirm the software update was applied, and match the exact variant to your vehicle by VIN.
How many miles is too many for a Honda 1.5 turbo?
Under 80,000 miles is ideal for a turbocharged direct-injection engine. 80,000 to 120,000 is acceptable with clear service records. Above 140,000 we'd recommend a lower-mileage unit, since turbo and injector wear are cumulative.
Do you have other Honda engines and transmissions?
Yes. We stock nearly 1,000 used Honda engines covering the K24 2.4L, J35 V6 and R18, plus used Honda transmissions including automatics and CVTs for the Accord, Civic, CR-V and Pilot. Tell us your VIN and we'll match the right unit.
Need a Honda 1.5 Turbo?
Browse Honda 1.5 turbo engines in stock with live prices and documented mileage, or call and text +1 (361) 470-5276 with your VIN. Free nationwide shipping, 6-month warranty, photos before we ship.
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