Think of it as Yoga for the brain, we are going to stretch a bit.
Cooling & Fuel
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
