INFINITI QX70, S51 (USA)

Coolant capacity & service interval

INFINITI QX70, S51 (USA) models utilize coolant with a capacity range of 0,8 to 11 liters. Service intervals include checks at 10000 miles or 12 months, and changes at 75000 miles or 60 months and 105000 miles or 84 months. The data covers 8 configurations.

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

TypeSpecifications
QX70 3.7, S51 (2013-2017)
  • Use: Normal
  • Capacity 0,8 liter (Reservoir)
  • Capacity 9,5-10 liter (Total)
  • Check 10000 miles/ 12 months
  • Change 75000 miles/ 60 months
QX70 3.7, S51 (2013-2017)
  • Use: First change only
  • Capacity 0,8 liter (Reservoir)
  • Capacity 9,5-10 liter (Total)
  • Check 10000 miles/ 12 months
  • Change 105000 miles/ 84 months
QX70 3.7 AWD, S51 (2013-2017)
  • Use: Normal
  • Capacity 0,8 liter (Reservoir)
  • Capacity 9,5-10 liter (Total)
  • Check 10000 miles/ 12 months
  • Change 75000 miles/ 60 months
QX70 3.7 AWD, S51 (2013-2017)
  • Use: First change only
  • Capacity 0,8 liter (Reservoir)
  • Capacity 9,5-10 liter (Total)
  • Check 10000 miles/ 12 months
  • Change 105000 miles/ 84 months
QX70 5.0, S51 (2013-2014)
  • Use: Normal
  • Capacity 0,8 liter (Reservoir)
  • Capacity 11 liter (Total)
  • Change 75000 miles/ 60 months
QX70 5.0, S51 (2013-2014)
  • Use: First change only
  • Capacity 0,8 liter (Reservoir)
  • Capacity 11 liter (Total)
  • Change 105000 miles/ 84 months
QX70 5.0 AWD, S51 (2013-2014)
  • Use: Normal
  • Capacity 0,8 liter (Reservoir)
  • Capacity 11 liter (Total)
  • Change 75000 miles/ 60 months
QX70 5.0 AWD, S51 (2013-2014)
  • Use: First change only
  • Capacity 0,8 liter (Reservoir)
  • Capacity 11 liter (Total)
  • Change 105000 miles/ 84 months

Additional Notes

  • The INFINITI QX70 S51 cooling system reservoir capacity is 0.8 liter across all configurations, representing the overflow or expansion tank volume separate from the main circuit.
  • The 3.7-liter engine carries a total cooling system capacity of 9.5-10 liters, while the 5.0-liter engine holds 11 liters total, reflecting the larger displacement and associated thermal load of the V8.
  • Under normal use conditions, the 3.7-liter configurations specify a coolant change interval of 75,000 miles or 60 months, whichever comes first.
  • The first change only condition for the 3.7-liter engine extends the initial coolant change interval to 105,000 miles or 84 months, after which subsequent changes revert to the normal 75,000-mile or 60-month schedule.
  • The 5.0-liter engine follows the same interval structure as the 3.7-liter: 75,000 miles or 60 months under normal use, and 105,000 miles or 84 months for the first change only condition.
  • A coolant check interval of 10,000 miles or 12 months is specified for the 3.7-liter configurations, a routine inspection point distinct from the full drain-and-fill service.
  • No coolant check interval is listed for the 5.0-liter configurations, which carry only the change intervals in the specifications.
  • The 5.0-liter engine configurations are limited to the 2013-2014 model years, whereas the 3.7-liter engine spans the full 2013-2017 range covered by the specifications.
  • AWD and non-AWD variants within the same engine family share identical cooling system capacities and service intervals across all listed configurations.

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