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Vehicles using Reduction gear RE1F61B engine list:

  • NISSAN - Leaf (110kW) 2017–2018

Recommended oil for engine Reduction gear RE1F61B engine.

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Questions strictly about engine codes (brand/model/engine type/production years).
Oil Specs Comparison
Castrol ON EV Transmission Fluid D1
Castrol ON EV Transmission Fluid D1
Full synthetic✔
Dry e-Motor use✔
Viscosity @ 40°C: 18 mm²/s✔
Viscosity @ 100°C: 4.6 mm²/s✔
Viscosity Index: 193✔
Brookfield @ -40°C: 3500 mPa·s✔
Oil specification key
✔ – Meets the required specification
❓ – Not explicitly stated (use caution; check your vehicle manual)
❌ – Does not meet required specification. Use may cause engine issues.

Answer generated by AI.

Oil specifications for Reduction gear RE1F61B engine

Most common problems, symptoms & fixes for the Reduction gear RE1F61B engine.

Engine Reduction gear RE1F61B

Symptoms:
- Unusual whining or grinding noises from the transmission area
- Difficulty in gear engagement or slipping
- Reduced vehicle acceleration or power delivery
- Transmission warning light or error codes related to gear reduction issues

Diagnosis:
- Conduct a thorough visual inspection for leaks, damage, or wear on the reduction gear assembly
- Use diagnostic tools to check for transmission fault codes specific to the RE1F61B unit
- Listen for abnormal noises during operation to pinpoint gear or bearing wear
- Check transmission fluid level and condition, as low or contaminated fluid can cause gear issues
- Perform a road test to observe symptoms under different driving conditions

Fixes:
- Replace worn or damaged bearings and gears within the reduction gear assembly
- Repair or replace seals and gaskets to stop fluid leaks
- Flush and replace transmission fluid with manufacturer-recommended type to ensure proper lubrication
- Rebuild or replace the entire reduction gear unit if damage is extensive
- Update transmission control software if applicable to improve gear operation and prevent errors

Prevention:
- Regularly check and maintain transmission fluid levels and quality according to Nissan Leaf service intervals
- Avoid aggressive driving that puts excessive strain on the transmission and reduction gear
- Schedule periodic inspections of the transmission system to catch early signs of wear or damage
- Use only OEM or high-quality replacement parts during repairs to ensure durability
- Keep the vehicle’s software updated to benefit from manufacturer improvements in transmission management
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* The engine oils listed on this website are general recommendations based on publicly available data. For the most accurate and suitable oil type for your vehicle, always refer to your car's owner manual or technical documentation. Oil specifications may vary depending on engine version, production year, driving conditions, and other factors. If in doubt, consult your vehicle manufacturer or a certified mechanic.