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2018 Jeep Wrangler
2018 Wrangler JL coolant is Mopar 10 Year/150,000 Mile OAT. Engine, intercooler, motor-generator, and battery loops each have their own capacity.
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: 2018 Jeep Wrangler JL Owner's Manual, publication 18JL-126-AC, fluid capacities (opens in a new tab), FCA US LLC, published 2018-01-01, read 2026-10-15.
Numbers on this page come from the cited source. Match the engine before you use a capacity or a torque. Do not work under a vehicle held only by a jack.
Mopar 10 Year/150,000 Mile OAT coolant or the equivalent in the table
A non-OAT fill has to be drained, flushed, and refilled with OAT meeting MS.90032 by an authorized dealer.
| Item | Figure | Where it comes from |
|---|---|---|
| Coolant | Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT, or equivalent meeting FCA Material Standard MS.90032. | Fluids and lubricants, engine coolant |
| 2.0L engine | 10.3 quarts (9.7 liters). Includes the recovery bottle filled to MAX. | Fluid capacities, cooling system |
| 2.0L intercooler, without motor generator | 3.2 quarts (3.0 liters). Same OAT coolant. | Fluid capacities, cooling system |
| 2.0L intercooler, with motor generator | 3.5 quarts (3.3 liters). Same OAT coolant. | Fluid capacities, cooling system |
| 2.0L battery coolant | 2.5 quarts (2.4 liters). Same OAT coolant. | Fluid capacities, cooling system |
| 3.6L engine | 11.2 quarts (10.6 liters). Includes the recovery bottle filled to MAX. | Fluid capacities, cooling system |
| 3.6L motor generator, if equipped | 1.9 quarts (1.8 liters). Same OAT coolant. | Fluid capacities, cooling system |
| 3.6L battery coolant, if equipped | 2.5 quarts (2.4 liters). Same OAT coolant. | Fluid capacities, cooling system |
Engine, intercooler, motor-generator, and battery-coolant rows all name Mopar 10 Year/150,000 Mile OAT meeting MS.90032.
The 2.0L engine is 10.3 quarts. The intercooler is 3.2 quarts without a motor generator and 3.5 quarts with one. Battery coolant is 2.5 quarts.
The 3.6L engine is 11.2 quarts. The motor generator, if equipped, is 1.9 quarts. Battery coolant, if equipped, is 2.5 quarts.
No bleed sequence is printed in the capacity table, so none is added. The engine footnote includes the recovery bottle filled to MAX. The manual says this vehicle has not been designed for propylene glycol coolant.
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Tool
Mopar 10 Year/150,000 Mile OAT coolant or the equivalent in the table
A non-OAT fill has to be drained, flushed, and refilled with OAT meeting MS.90032 by an authorized dealer.
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These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.