Honda Stepwagon RK5

It's difficult to find out some information on the Stepwagon RK5 so I thought I'd document my findings here for future reference and to help others.

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Service intervals

These are the service intervals as per the Japanese maintenance book that came with my RK5. These appear to be generic (cover various models) and it's possible Honda may have changed these in the meantime but this should still give a decent idea. I've tried to add in any specs, equivalents and part numbers but do double check with another source before purchase, just in case.

The first column is the standard whichever comes first interval but the last column provides an interval for "severe" conditions. The severe conditions also overule the first time interval if that's longer. What Honda considers severe is listed and may differ for each item.

Mileage / Time Item Notes Specification / part number Severe conditions
15,000 km 9,000 miles
12 months 		Oil API SN SAE - 0W-20 or 5W-30
3.5L or 3.7L with filter change.		 Every 7,500 km if >30% time spent on:
  • Rough, rocky, dusty or snowy roads
  • Mountainous/hilly roads (where breaks are used frequently)
  • Frequent short journies (<8 km)
  • Many repeated trips below freezing point
  • Low speeds of <30 km/h or often idle
30,000 km 19,000 miles
24 months 		Oil filter 15400-RTA-003 Every 15,000 km if >30% time spent on:
  • Rough, rocky, dusty or snowy roads
  • Mountainous/hilly roads (where breaks are used frequently)
  • Frequent short journies (<8 km)
  • Many repeated trips below freezing point
  • Low speeds of <30 km/h or often idle
40,000 km 25,000 miles Differential oil Only 4WD versions Honda DPSF-II (seems to be AKA DPF-II or DPF-2)
1.2L
50,000 km 31,000 miles Air filter 17220-R0A-003
60,000 km 37,000 miles (80,000 km first time) Transmission fluid For CVT Honda HCF-2
3.7L or 4.3L for 4WD/AWD
(After cycling through the gears, you may need another 0.5L to reach the fill hole again) 		For CVT, every 40,000 km if >30% time spent on:
  • Rough, rocky, dusty or snowy roads
  • High mileage of >20,000 km a year
  • Mountainous/hilly roads (where breaks are used frequently)
  • Low speeds of <30 km/h or often idle
100,000 km 62,000 miles Spark plugs 4x NGK IZFR6K11NS or DENSO SKJ20DR-M11S
Iridium
1.0-1.1mm gap
12290-R60-U01
18 - 21.6 lb. ft / 24.4 - 29.3 Nm
120,000 km 75,000 miles (200,000 km first time)
6 years (11 years first time) 		Coolant Honda type 2 coolant (manual states "Honda genuine ultra coolant at 50% concentration")
5.85L (including reservoir)
2 years (3 years first time) Brake fluid Honda brake fluid DOT3 or DOT4