Two systems, one job each: keep the engine at its temperature, and feed it. The cooling half gives the thermostat and pressure-cap numbers and the SRT’s extra charge-air cooling circuit; the fuel half gives working pressure, delivery rate, pump draw and the tank’s real capacity, reserve included.
Exhaust fasteners are covered by torque rather than by specification — those values live with the rest of the car’s hardware in the Torque Specifications chapter.
8. Cooling System (Group 7)
| Item | Specification |
|---|---|
| Thermostat type | Pellet (wax) type, serviced with housing as an assembly |
| Thermostat opens | 195 °F (90 °C) |
| Pressure cap relief pressure | 110 kPa ± 14 kPa (16 psi ± 2 psi) |
| Cooling system leak-test pressure | 104 kPa (15 psi); max. drop 2 psi in 2 minutes; never exceed 138 kPa (20 psi) |
| Coolant type | Ethylene-glycol HOAT, MB 325.0 (MS-9769) |
| Coolant mixture | 50/50 with distilled water; freeze point −37 °C (−35 °F); min. 44% concentration; 68% concentration protects to −67.7 °C (−90 °F) |
| Coolant capacity — 3.2L | 11.2 L (11.8 qts.) |
| Coolant capacity — 3.2L SRT | 14.5 L (15.3 qts.) |
| SRT addition | Charge air cooler with separate radiator and circulation pump (shares coolant recovery reservoir) |
Source: Group 7 — Cooling (PDF p.558–599); Group 0 — Coolant description
9. Fuel System (Group 14)
| Item | Specification |
|---|---|
| Fuel type | Premium unleaded gasoline |
| Minimum octane | 91 (R+M)/2 |
| Nominal working pressure | 3.7 – 4.1 bar (54 – 60 psi) |
| Allowable leak-down (engine off, after 30 min.) | 2.5 bar (36 psi) |
| Minimum fuel delivery rate | 1 liter (1.05 qt.) in max. 35 seconds |
| Fuel pump amperage draw | 4 – 9 amps |
| Fuel tank capacity — total | 60 L (15.8 U.S. gal.) |
| Fuel tank capacity — reserve | 8 L (2.1 U.S. gal.) |
| Fuel filter / pressure regulator | Combined unit, chassis crossmember mounted |
Source: Group 14 — Fuel Delivery Specifications (PDF p.2945); Group 0 — Fuel Requirements