Lotus Esprit S1
Coolant capacity & service interval
Lotus Esprit S1 uses coolant with a capacity of 11 liters. The data covers 1 configuration.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Esprit S1 (1976-1978) |
|
Additional Notes
- The Lotus Esprit S1 cooling system carries a capacity of 11 liters, which represents a full system fill volume encompassing the radiator, hoses, heater core, and engine block passages.
- The 11-liter figure applies under normal use conditions, meaning standard operating environments without the added thermal stress associated with severe-duty classifications such as towing, extended idling, or extreme temperature exposure.
- A coolant capacity of 11 liters is relatively modest, consistent with the mid-engine layout of the Esprit S1, where the 907-series four-cylinder engine and its associated cooling circuit occupy a compact rear compartment with a front-mounted radiator fed by long coolant runs.