* Engine condition: A well-maintained engine with low mileage will consume considerably less oil than one with high mileage, worn piston rings, or valve stem seals.
* Driving style: Aggressive driving and frequent short trips (not allowing the engine to reach operating temperature) can increase oil consumption.
* Oil viscosity: Using the incorrect oil viscosity can also impact consumption. Always use the oil grade recommended by Chrysler in your owner's manual.
* Type of oil: Synthetic oil generally burns slower than conventional oil.
However, a generally accepted *guideline* for *many* engines (including some Hemi's, but not a guarantee for yours), is that consuming up to one quart of oil between oil changes is often considered acceptable. Anything significantly beyond that (e.g., more than a quart every 500-1000 miles) warrants investigation.
To determine what's normal for *your* 2007 HEMI:
1. Consult your owner's manual: It may specify an acceptable oil consumption range.
2. Monitor your oil level regularly: Check it before each long trip and after driving for a while. Note how much oil you add between changes.
3. If excessive consumption is observed: Take your vehicle to a qualified mechanic for diagnosis. They can pinpoint the cause (worn seals, piston rings, etc.) and recommend repairs.
Don't rely solely on internet forums for determining normality; your specific engine's condition is crucial. Excessive oil consumption can lead to serious engine damage if left unchecked.
