Austin Allegro, ADO67

Brake fluid capacity & service interval

Austin Allegro, ADO67 uses brake fluid with a capacity range. Service intervals include checks at 5000 km or 3 months and changes at 30000 km or 18 months. The data covers 8 configurations.

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

TypeSpecifications
1750 (1974-1983)
  • Use: Normal
  • Between min and max.
  • Check 5000 km/ 3 months
  • Change 30000 km/ 18 months
1100 (1973-1983)
  • Use: Normal
  • Between min and max.
  • Check 5000 km/ 3 months
  • Change 30000 km/ 18 months
1300 (1973-1983)
  • Use: Normal
  • Between min and max.
  • Check 5000 km/ 3 months
  • Change 30000 km/ 18 months
1300 Automatic (1973-1983)
  • Use: Normal
  • Between min and max.
  • Check 5000 km/ 3 months
  • Change 30000 km/ 18 months
1500 (1973-1983)
  • Use: Normal
  • Between min and max.
  • Check 5000 km/ 3 months
  • Change 30000 km/ 18 months
1500 Automatic (1973-1983)
  • Use: Normal
  • Between min and max.
  • Check 5000 km/ 3 months
  • Change 30000 km/ 18 months
1750 (1973-1974)
  • Use: Normal
  • Between min and max.
  • Check 5000 km/ 3 months
  • Change 30000 km/ 18 months
1750 Automatic (1973-1974)
  • Use: Normal
  • Between min and max.
  • Check 5000 km/ 3 months
  • Change 30000 km/ 18 months

Additional Notes

  • Across all Austin Allegro ADO67 configurations covered here, brake fluid capacity is expressed as a reservoir level range rather than a fixed volume, with the specification requiring the fluid to sit between the marked minimum and maximum points on the reservoir.
  • The check interval of 5,000 km or 3 months, whichever comes first, applies under normal use conditions to all eight configurations spanning the 1100, 1300, 1500, and 1750 engine variants, including both manual and automatic transmission versions.
  • The change interval of 30,000 km or 18 months applies uniformly across all configurations under normal use conditions, reflecting the hygroscopic nature of brake fluid, which absorbs moisture over time and lowers its boiling point regardless of mileage accumulation.
  • The 1750 engine appears in two distinct year-range entries for the manual variant, covering 1973-1974 and 1974-1983 separately, while the 1750 Automatic is listed only for 1973-1974, indicating a difference in production span between the two transmission types at that displacement.
  • The 1300 and 1500 displacements each have a corresponding automatic transmission variant sharing identical brake fluid service intervals, whereas the 1100 is listed only in a manual configuration within these specifications.
  • All configurations share the same hydraulic brake system note, indicating a common brake circuit architecture across the 1100 through 1750 engine range of the Allegro ADO67 for the purposes of fluid servicing.

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