Aprilia SR

Coolant capacity & service interval

Aprilia SR uses coolant with a capacity of 1,2 liters. Service intervals include checking every 2000 km and changing every 24 months. The data covers 5 configurations.

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

TypeSpecifications
SR 50, Piaggio Engine (2004- )
  • Use: Normal
  • Capacity 1,2 liter
  • Check 2000 km
  • Change 24 months
SR 50 Pure Jet, Piaggio Engine (2004-2014)
  • Use: Normal
  • Capacity 1,2 liter
  • Check 2000 km
  • Change 24 months
SR 50 LC, Morini Engine (2000-2003)
  • Use: Normal
  • Capacity 1,2 liter
  • Check 2000 km
  • Change 24 months
SR 50 LC Di-Tech, Morini Engine (2000-2007)
  • Use: Normal
  • Capacity 1,2 liter
  • Check 2000 km
  • Change 24 months
SR 50 LC, Minarelli Engine (1995-2000)
  • Use: Normal
  • Capacity 1,2 liter
  • Check 2000 km
  • Change 24 months

Additional Notes

  • All five Aprilia SR configurations listed carry an identical cooling system capacity of 1.2 liters, a figure consistent with the small-displacement liquid-cooled single-cylinder engines found in 50cc scooters of this class.
  • The 1.2-liter figure represents a full cooling system fill, encompassing the radiator, hoses, and reservoir rather than a partial service top-up volume.
  • A coolant check interval of 2,000 km applies uniformly across all listed SR 50 variants under normal use conditions, reflecting the relatively short service cycles typical of small-displacement two-stroke and four-stroke scooter engines.
  • The change interval of 24 months is time-based rather than distance-based, meaning coolant degradation over time drives the replacement schedule regardless of kilometers accumulated.
  • The Aprilia SR 50 LC with Minarelli engine covers the 1995-2000 period, while the SR 50 LC with Morini engine spans 2000-2003, indicating a supplier transition at the turn of the millennium with no change to cooling system capacity or service intervals.
  • The SR 50 LC Di-Tech with Morini engine, covering 2000-2007, shares the same 1.2-liter capacity and service schedule as the non-Di-Tech Morini variant despite the Di-Tech designation referring to a direct fuel injection system, which does not alter the cooling circuit specifications.
  • The SR 50 Pure Jet with Piaggio engine, spanning 2004-2014, retains the 1.2-liter cooling system capacity, with the Pure Jet name denoting Piaggio's fuel-injected engine variant rather than a carbureted configuration.
  • The SR 50 with Piaggio engine introduced from 2004 onward shares the same 1.2-liter capacity and 2,000 km check interval as the Pure Jet variant, despite representing a distinct model configuration within the SR 50 range.

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