You will need a socket set that fits the 15mm oil drain plug, a 13mm socket for the factory oil filter, and a drain pan capable of holding at least 8 quarts. When performing an oil change on this variant, you will typically need 4.
2018 Jeep Grand Cherokee Oil Capacity Check: How Much Oil Does Your Engine Need?
4-liter HEMI unit with its own distinct requirements. If you own the SRT model with the 6.
Conversely, overfilling the crankcase introduces air into the oil system, creating foam that reduces lubrication effectiveness and can cause pressure fluctuations that damage seals and gaskets. The oil sump on these vehicles holds a significant volume, and knowing the exact capacity prevents under-filling, which causes damage, or over-filling, which leads to pressure issues and seal failure.
2018 Jeep Grand Cherokee Oil Capacity Check: How Much Oil Does Your Engine Need?
7-liter HEMI V8, found in models like the Limited and Overland trims, the capacity increases to roughly 6. 6-liter Pentastar engine is the workhorse of the 2018 lineup, valued for its balance of power and fuel efficiency.
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