The transmission fluid you need depends on which transmission your Accord has: CVT models use Honda CVT Fluid (HCF-2), while the 2.0-liter turbo with the 10-speed automatic uses Honda ATF DW-1.
Two transmissions, two fluids
In 2018, the Honda Accord was offered with two different drivetrains and transmissions. The 1.5-liter turbo engine pairs with a continuously variable transmission (CVT), while the 2.0-liter turbo engine pairs with a 10-speed automatic. Each transmission requires a different fluid specification.
- 1.5L turbo with CVT: Honda CVT Fluid (HCF-2).
- 2.0L turbo with 10-speed automatic: Honda ATF DW-1.
Always use the exact fluid specified for your transmission and avoid cross-using fluids from the other transmission type. If you’re unsure of your trim or production date, check the owner’s manual or consult a Honda dealer to confirm the correct fluid.
Fluid specifics by transmission
CVT (1.5L turbo)
The continuously variable transmission in the 2018 Accord requires Honda CVT Fluid, designated HCF-2. This fluid is formulated specifically for Honda CVTs and should not be substituted with standard automatic transmission fluid (ATF) or other brands’ CVT fluids. Following the manufacturer’s guidance helps maintain smooth operation and CVT longevity.
10-speed automatic (2.0L turbo)
The 10-speed automatic in the 2018 Accord uses Honda ATF DW-1. This is Honda’s dedicated automatic transmission fluid for these transmissions and should be used as specified. Mixing DW-1 with other ATFs or using non-Honda fluids can affect shifting performance and warranty coverage.
Maintenance considerations
Keeping the correct fluid in your transmission is essential for performance, reliability, and warranty compliance. The fluid change intervals and procedures vary by transmission and driving conditions. Always follow the schedule and instructions in your owner’s manual or those provided by a Honda service technician. If you’re unsure whether a fluid change is due, consult a dealer or qualified mechanic.
Practical tips for owners
Key points to keep in mind when servicing or inspecting transmission fluid:
- Use only the specified fluid for your transmission (HCF-2 for CVT, DW-1 for the 10-speed automatic).
- Avoid mixing fluids from different transmissions or brands.
- Have CVT fluid changes performed by a technician with CVT service experience, if possible, as some models require special equipment.
- Keep receipts and document fluid type and change intervals for warranty and resale considerations.
When in doubt, refer to the owner's manual or contact a Honda dealership for the exact specifications and service recommendations for your vehicle’s production date and region.
Summary
For the 2018 Honda Accord, fluid choice hinges on the transmission: CVT models use Honda CVT Fluid HCF-2, while the 2.0L turbo with a 10-speed automatic uses Honda ATF DW-1. Use only the specified fluid for your transmission, follow the maintenance schedule in the manual, and consult a professional if you’re unsure about your exact configuration.