Compare two new cars by price, estimated monthly payment, fuel economy, and other specifications. Data comes from the CarPayCheck.com catalog and uses your selected financing terms.
| MDX | GX | |
|---|---|---|
| Manufacturer | Acura | Lexus |
| Starting price | — | — |
| Monthly payment | — | — |
| Fuel type | Gasoline | Gasoline |
| Fuel economy | 21.0 mpg | 17.0 mpg |
| CO₂ emissions | 410 g/mi–475 g/mi | 505 g/mi |
| Annual maintenance cost | — | — |
Common-issue data is not available yet.
The 2019-2023 Lexus GX460 with the 4.6L V8 can develop a coolant leak in the valley between the cylinder banks, often from the valley-pipe O-rings or gaskets under the intake manifold. Symptoms include a sweet coolant smell, dropping coolant level with no obvious external leak, a possible low-coolant warning, and eventual overheating if ignored. The 2024 and newer GX550 uses a different twin-turbo V6 and is not affected by this specific issue. Repair typically requires removing the intake manifold and replacing the valley gaskets or O-rings.
Acura MDX and Lexus GX suit different driving needs. The main differences below cover price, monthly payment, fuel economy, and running costs.
Both models use Gasoline. Fuel economy is MDX — 21.0 mpg; GX — 17.0 mpg. MDX uses less energy in everyday driving.
The final choice is about more than numbers: annual distance, city or highway use, and the space your household needs all matter. Use the CarPayCheck.com calculator to apply your financing terms and evaluate both cars in your situation.
Want to compare other models? Return to the full catalog or calculate financing using your own terms.
