Challenger RoGator

Coolant capacity & service interval

Challenger RoGator coolant capacity ranges from 25 to 29 liters. Service intervals include 10 hours for checks, 1000 hours for changes, and 24 months for changes. The data covers 12 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
RG 1100C (2016- )
  • Use: Normal
  • Capacity 25 liter
  • Change 24 months
RG 1300C (2016- )
  • Use: Normal
  • Capacity 25 liter
  • Change 24 months
RG 635C (2016- )
  • Use: Normal
  • Capacity 29 liter
RG 635D (2016- )
  • Use: Normal
  • Capacity 29 liter
RG 645C (2016- )
  • Use: Normal
  • Capacity 29 liter
RG 645D (2016- )
  • Use: Normal
  • Capacity 29 liter
RG 655C (2016- )
  • Use: Normal
  • Capacity 29 liter
RG 655D (2016- )
  • Use: Normal
  • Capacity 29 liter
RG 900C (2016- )
  • Use: Normal
  • Capacity 25 liter
  • Change 24 months
RG 635B (2014- )
  • Use: Normal
  • Capacity 29 liter
  • Check 10 hours
  • Change 1000 hours/ 24 months
RG 645B (2014- )
  • Use: Normal
  • Capacity 29 liter
  • Check 10 hours
  • Change 1000 hours/ 24 months
RG 655B (2014- )
  • Use: Normal
  • Capacity 29 liter
  • Check 10 hours
  • Change 1000 hours/ 24 months

Additional Notes

  • The Challenger RoGator RG 1100C, RG 1300C, and RG 900C share a cooling system capacity of 25 liters, which is notably smaller than the 29-liter figure found across the B, C, and D series of the RG 635, RG 645, and RG 655 models.
  • The 25-liter cooling systems on the RG 900C, RG 1100C, and RG 1300C carry a change interval of 24 months under normal use conditions, with no hourly interval specified alongside.
  • The RG 635B, RG 645B, and RG 655B each specify a 10-hour coolant check interval under normal use, reflecting a more frequent monitoring requirement compared to the C and D series variants of the same model lines.
  • On the RG 635B, RG 645B, and RG 655B, the coolant change interval is defined by whichever threshold arrives first: 1,000 hours of operation or 24 months of elapsed time under normal use conditions.
  • The 29-liter cooling system capacity is consistent across all three B-series models — RG 635B, RG 645B, and RG 655B — as well as their corresponding C and D variants, indicating a shared cooling system architecture across those model lines.
  • The RG 635C, RG 635D, RG 645C, RG 645D, RG 655C, and RG 655D all carry a 29-liter cooling system capacity with no change interval or check interval listed in the specifications.
  • The B-series models introduced from 2014 onward carry both a capacity figure and a dual-condition change interval, while the C and D variants introduced from 2016 onward share the same 29-liter capacity without an accompanying interval specification.

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