Here's what you need to know: the 2018 Honda Gold Wing GL1800 typically uses 10W-40 motorcycle oil that meets API SN or later and JASO MA2 standards, with a capacity of about 4.5 quarts (4.3 liters) when changing the oil and filter. If you own a DCT model, the transmission oil is separate and should follow the manual’s guidance.
Engine oil requirements for the 2018 Gold Wing
The following specifications cover the engine oil you should use to keep your Gold Wing running smoothly and maintain warranty coverage.
- Oil viscosity: 10W-40 is the standard recommendation for most operating conditions.
- Oil standards: API SN (or later) and JASO MA2 compliance.
- Oil type: motorcycle-grade synthetic or synthetic-blend oils are suitable; avoid using conventional auto engine oils.
- Engine oil capacity: approximately 4.5 US quarts (about 4.3 liters) with the oil filter change.
Concluding note: Always verify the exact specification in your owner’s manual, as early or late production runs may have slight variations, and climate conditions can influence viscosity choices.
DCT variant considerations
If you ride a 2018 Gold Wing with the Dual Clutch Transmission (DCT), the engine oil is still typically 10W-40 and meets the same API/JASO standards, but the transmission uses its own dedicated oil. Do not mix transmission oil with engine oil, and follow the manual for the correct transmission fluid type and change intervals.
Practical guidance for selecting oil
To help you choose the right product, consider these guidance points:
- Choose a synthetic or synthetic-blend motorcycle oil that meets API SN or later and JASO MA2.
- Target a viscosity of 10W-40 for broad temperature ranges; in extreme heat or cold, consult the manual for any regional recommendations.
- Ensure the oil is labeled for motorcycles (not a car engine oil) and that it covers the GL1800’s requirements.
Concluding guidance: When in doubt, use Honda-approved or Honda-recommended options and have your oil and filter changed by a qualified technician, especially if you’re near warranty limits or riding in challenging conditions.
Summary
The 2018 Honda Gold Wing takes 10W-40 motorcycle oil that meets API SN or later and JASO MA2 specifications, with a fill capacity of about 4.5 quarts (4.3 liters) when changing the oil and filter. For DCT models, remember there is a separate transmission oil with its own requirements—consult the owner's manual for exact specifications and change intervals. Always verify current recommendations in the manual or with a Honda dealer to ensure accuracy for your exact bike and climate.