Honda Legend, KB (EU)
Differential fluid capacity & service interval
Honda Legend, KB (EU) differential fluid capacity ranges from 0,73 to 3,1 liters. Service intervals include 30000 km/24 months and 45000 km/36 months. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- The Honda Legend KB rear differential is divided into two distinct fluid chambers: a clutch chamber and a hypoid chamber, each requiring separate fluid fills during service.
- The clutch chamber holds a notably larger volume, with a capacity range of 2.7-3.1 liters, reflecting the space needed to house and lubricate the multi-plate clutch pack within the rear torque-vectoring differential assembly.
- The hypoid chamber carries a much smaller fill of 0.73-0.75 liters, consistent with the compact volume typical of a hypoid gear set housing that handles the ring-and-pinion final drive function.
- Both the 3.5 V6 (2005-2008) and the 3.7 V6 (2008-2012) share identical capacity figures across both chambers, meaning the physical differential unit accommodates the same fluid volumes regardless of engine displacement.
- Under normal use conditions, the rear differential fluid change interval for both engine variants is set at 45,000 km or 36 months, whichever comes first.
- An initial service interval of 30,000 km or 24 months applies to both the 3.5 V6 and 3.7 V6 variants, shortening the first fluid change cycle compared to subsequent normal-use intervals.
- The shortened initial service interval of 30,000 km/24 months versus the standard 45,000 km/36 months represents a 33% reduction in both distance and time, a common practice for break-in periods where new clutch friction material and gear surfaces shed fine metallic particles into the fluid.