Engine builders have identified a design flaw in the oiling of the lifter rollers on the Gen 3 HEMI family including the 6.1. Inadequate oiling leads to premature camshaft lobe and lifter roller wear, potentially causing catastrophic engine damage if not caught early.
Forum data references piston failures on the 6.1 HEMI, with discussion around whether stock piston oil cooler jets provide sufficient cooling under sustained high loads. Pistons can crack or seize under hard use without adequate oil cooling.
Knocking or rattling from engine
Loss of compression on affected cylinder
Oil contamination with coolant or metal debris
Sudden power loss
DIY: Hard
Throttle Stuck Open / Unintended Acceleration€200-800 · 0-150,000 kmHIGH
Multiple NHTSA complaints document throttle sticking open on 2008 Challengers. Owners report the issue occurring repeatedly and Dodge not recognising it as a defect. Risk of accident is significant.
NHTSA complaints describe the 2008 Challenger stalling while driving at speed with no warning light, then restarting on its own. This points to possible crankshaft position sensor, fuel delivery, or PCM issues.
FCA recalled 2008-2010 Dodge Challenger vehicles for defective Takata airbag inflators on both driver and passenger sides. Inflators can rupture and send metal fragments into occupants. This is a life-safety issue and must be verified as completed before purchase.
Chrysler recalled 6,636 MY 2008-2009 Challenger vehicles with automatic transmissions and Keyless Go option for a faulty park/neutral start interlock switch. Vehicle could potentially start in gear.
Engine cranks in gear
Unexpected vehicle movement on startup
Intermittent no-start condition
DIY: Moderate
Electrical Gremlins (Airbag, ESC, Door Locks, Windows)€200-1,500 · 0-80,000 kmMODERATE
NHTSA complaint documents airbag light, engine light, ESC faults, and non-functional door locks and windows appearing simultaneously on a low-mileage 2008 Challenger. Likely related to a ground fault or BCM issue.
Multiple dashboard warning lights simultaneously
Non-functional power accessories
Airbag and engine light on together
DIY: Hard
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Buying Checklist
Run the VIN through NHTSA recall database and confirm both Takata airbag recalls (driver and passenger) are completed — walk away if not done
Check for valve train tick on cold start — a ticking 6.1 may indicate camshaft or lifter roller wear requiring expensive repair
Request full oil change service history; 6.1 HEMI needs short intervals (5,000 km) and any gaps are a red flag for cam/lifter damage
Test drive specifically for throttle sticking or unintended acceleration, and check for any stalling at speed or on deceleration
Perform a compression and leak-down test on all 8 cylinders to rule out piston damage, especially on high-mileage or hard-driven examples
Verify the park/neutral start interlock recall is completed if the car has an automatic transmission with the Keyless Go option
Service Reality
Community oil interval5,000 km
Oil specification5W-20 full synthetic (Mopar or equivalent), some owners prefer 5W-40 full synthetic for track or high-load use
Est. ownership cost (2yr)€1,500-3,500 per year depending on mileage, insurance, and whether any cam/lifter or powertrain work is needed
Real fuel consumptionNo data
Also Found In
Dodge Charger SRT8 (2006-2010)Chrysler 300C SRT8 (2006-2010)Jeep Grand Cherokee SRT8 (2006-2010)Dodge Magnum SRT8 (2006-2008)
Buying Advice
The 6.1 HEMI Challenger SRT8 is a genuinely capable and characterful performance car with a solid engine foundation, but it demands due diligence before purchase. The Takata airbag recall is non-negotiable — confirm it is completed before you even consider making an offer. Camshaft and lifter wear is the most expensive mechanical risk on these engines, so insist on documented short-interval oil change history and listen carefully for valve train noise on a cold start. If the history checks out and the recalls are done, this is an enjoyable and tunable American muscle car that will reward a careful owner.
Parts People Buy
6.1 HEMI Camshaft ReplacementLink unavailable
6.1 HEMI Lifter SetLink unavailable
6.1 HEMI Oil FilterLink unavailable
5W-20 Full Synthetic Oil 6.1 HEMILink unavailable
Throttle Body Cleaning Kit 6.1 HEMILink unavailable
Crankshaft Position Sensor 6.1 HEMILink unavailable
ARP Rod Bolts 6.1 HEMILink unavailable
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