The short answer
Based on available data, the Jeep Grand Cherokee comes out ahead of the Dodge Durango on fuel economy. Check the specs table and owner sentiment below for the full comparison before deciding between the two. Both are covered by real owner reports on CarWizz.
Overall
Sentiment is mixed but leans positive, with a clear generational divide. Long-term owner reports for the third generation (post-2011) generally describe it as a reliable, powerful, and practical family hauler when properly maintained. The V8 Hemi engines and the ZF 8-speed automatic transmission (available from 2014 onward) receive consistent praise for strong performance, smooth operation, and durability.
Best version to buy
For the refreshed generation (2021+), the R/T trim with the 5.7L Hemi V8 and the ZF 8-speed transmission is frequently recommended as the best balance of performance, reliability, and value. The Tow 'N Go (TNG) package is highlighted as a desirable addition for those needing maximum towing capability.
Known issues
Overall
Sentiment is sharply divided and heavily dependent on model year and generation. Long-term owner reports for the WK2 generation (approximately 2011-2021) indicate a pattern of initial satisfaction followed by significant reliability concerns, particularly after surpassing 100,000-120,000 miles. Owners of earlier models (e.g., 2005 with the 4.7L V8) express concerns about durability and high maintenance costs.
Best version to buy
Insufficient owner data available to declare a consensus "best" version. Isolated positive reports exist for the V8-powered models (e.g., Summit Reserve) for their power and towing capability, and for the Overland trim of the WK2 generation for its luxury features.
Known issues
The verdict
The Jeep Grand Cherokee is the better choice for most buyers.
It has better fuel economy on its best-equipped version than the Dodge Durango, based on the data above. If power matters more to you than running costs, the Dodge Durango is worth a closer look instead.
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Which is more reliable, the Dodge Durango or the Jeep Grand Cherokee?
Owner reports show similar reliability sentiment for the Dodge Durango and the Jeep Grand Cherokee. Check the known issues listed above for specific differences between the two.
Which is better for families, the Dodge Durango or the Jeep Grand Cherokee?
The Dodge Durango seats more passengers than the Jeep Grand Cherokee on its catalogued best-equipped version. Body type also differs: the Dodge Durango is classed as a SUV, the Jeep Grand Cherokee as a SUV.
Which has better fuel economy, the Dodge Durango or the Jeep Grand Cherokee?
The Jeep Grand Cherokee is more fuel-efficient on paper: 17.1 L/100km combined versus 18.1 L/100km for the Dodge Durango, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the Dodge Durango or the Jeep Grand Cherokee?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Jeep Grand Cherokee than the Dodge Durango. See the known issues comparison above.