Renault 20/30 (EU)

Coolant capacity & service interval

Renault 20/30 (EU) coolant capacity ranges from 7,2 to 9,8 liters. Service intervals require changes every 36 months or 45000 hours. The data covers 6 configurations.

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

TypeSpecifications
20 LS/TS, R1277 (1980-1984)
  • Use: Normal
  • Capacity 7,8 liter
  • Capacity 8,2 liter (+ airconditioning)
20 TX, R1279 (1980-1984)
  • Use: Normal
  • Capacity 7,7 liter
30 TX, R1278 (1979-1984)
  • Use: Normal
  • Capacity 9,8 liter
  • Change 36 months/ 45000 hours
20 LS/TS, R1272 (1977-1980)
  • Use: Normal
  • Capacity 7,8 liter
  • Capacity 8,2 liter (+ airconditioning)
20 L/TL/GTL, R1271 (1975-1981)
  • Use: Normal
  • Capacity 7,2 liter
  • Capacity 7,7 liter (+ airconditioning)
30 TS, R1275 (1975-1981)
  • Use: Normal
  • Capacity 9,8 liter
  • Change 36 months/ 45000 hours

Additional Notes

  • The Renault 20 L/TL/GTL (R1271) carries a base cooling system capacity of 7.2 liters, rising to 7.7 liters when air conditioning is fitted. The 0.5-liter difference reflects the additional coolant volume required to circulate through the condenser and heater circuit components added by the air conditioning system.
  • The 20 LS/TS in both the R1272 (1977-1980) and R1277 (1980-1984) variants share identical cooling system capacities of 7.8 liters standard and 8.2 liters with air conditioning, despite spanning different internal designations and production periods.
  • The air conditioning increment for the 20 LS/TS variants is 0.4 liters, compared to 0.5 liters for the R1271. This difference indicates a slightly smaller auxiliary circuit volume in the LS/TS cooling layout relative to the base 20 variant.
  • The 20 TX (R1279, 1980-1984) has a single listed capacity of 7.7 liters with no air conditioning variant specified, placing its base fill volume between the R1271 base and air-conditioned figures.
  • The Renault 30 TS (R1275) and 30 TX (R1278) both carry a notably higher cooling system capacity of 9.8 liters, substantially more than any of the 20-series variants. This reflects the larger displacement of the V6 engine used in the 30 series, which generates more heat and requires a greater coolant volume to maintain operating temperatures.
  • Both 30-series entries specify a coolant change interval of 36 months or 45,000 km, whichever comes first. No equivalent change interval is listed for any of the 20-series variants in these specifications.
  • The 36-month service interval on the 30 TS and 30 TX aligns with the degradation characteristics of conventional ethylene glycol antifreeze, which loses its corrosion inhibitor effectiveness over time regardless of mileage accumulation.
  • Across the full 20-series range, cooling system capacities span from 7.2 liters to 8.2 liters depending on engine variant and air conditioning fitment, while the 30-series sits at a fixed 9.8 liters across both the TS and TX designations.

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