2018 Dodge Charger Maintenance Schedule
Photo: Vhon Garcia / Pexels
The 2018 Dodge Charger LD spans a wide performance spectrum from the efficient 3.6L V6 to the supercharged 6.2L Hellcat, but all share the robust 8-speed TorqueFlite automatic and timing-chain architecture that eliminates belt replacement. This schedule addresses the unique demands of both daily-driven V6/5.7L models and high-performance HEMI variants, with particular attention to transmission service intervals and brake system wear that varies significantly across the lineup.
Service Intervals
| Service | Interval | Est. Cost |
|---|---|---|
| Engine Oil & Filter5.7L and larger HEMIs benefit from synthetic 0W-40; high-performance driving may warrant 5,000-mile intervals. | 10,000 mi / 12 mo | $45-$90 |
| Tire RotationStaggered performance tire setups on R/T and SRT models cannot be rotated front-to-rear. | 7,500 mi | $25-$50 |
| Engine Air FilterSupercharged Hellcat models use a unique high-flow filter; inspect more frequently in dusty conditions. | 30,000 mi | $20-$45 |
| Cabin Air FilterAffects HVAC performance and interior air quality; accessible behind glove box for DIY replacement. | 20,000 mi | $15-$35 |
| Brake Fluid FlushDOT 4 fluid absorbs moisture over time; critical for Brembo-equipped SRT models with high thermal loads. | 24 mo | $80-$140 |
| Brake Pad Inspection & ReplacementSRT/Hellcat Brembo pads wear faster under spirited driving; inspect every 10,000 miles on performance trims. | 40,000 mi | $180-$450 |
| Transmission Fluid & FilterZF 8HP transmission officially 'lifetime fill' but fluid change extends longevity, especially on AWD models. | 60,000 mi | $200-$350 |
| Coolant FlushOAT coolant rated for 10 years/150k miles, but earlier service prevents corrosion in aluminum HEMI blocks. | 100,000 mi / 120 mo | $120-$200 |
| Spark PlugsIridium plugs last longer, but supercharged Hellcat engines may require replacement closer to 60,000 miles. | 100,000 mi | $150-$400 |
| Rear Differential Fluid (RWD)Limited-slip differentials on performance models require friction-modifier additive; critical for SRT/Hellcat. | 50,000 mi | $90-$150 |
| Transfer Case & Front Differential (AWD)AWD-equipped V6 and 5.7L models only; uses specific ATF+4 fluid in transfer case. | 50,000 mi | $180-$280 |
| Battery Inspection & ReplacementGroup 94R AGM battery standard; Hellcat models draw higher current and may require earlier replacement. | 48 mo | $150-$280 |
| Serpentine BeltInspect for cracks at 60,000 miles; supercharged engines place higher stress on belt and tensioner. | 90,000 mi | $80-$160 |
2018 Dodge Charger Oil Change Interval
The 2018 Dodge Charger oil change interval is every 10,000 miles or 12 months, whichever comes first (estimated cost $45-$90). 5.7L and larger HEMIs benefit from synthetic 0W-40; high-performance driving may warrant 5,000-mile intervals.
What Happens If You Skip It
- Neglecting transmission fluid changes can cause harsh shifting and premature failure of the ZF 8HP unit, a $4,000+ repair not covered under powertrain warranty after 60,000 miles.
- Deferred brake fluid service on Brembo-equipped models leads to moisture contamination, reducing boiling point and risking brake fade during aggressive driving or emergency stops.
- Ignoring differential fluid changes on limited-slip rear ends causes clutch pack degradation, resulting in clunking during turns and eventual complete differential failure.
- Skipping spark plug replacement on supercharged Hellcat engines can cause misfires under boost, potentially damaging catalytic converters ($1,200+ each) or causing detonation that cracks pistons.
- Overdue coolant service accelerates corrosion in aluminum cylinder heads and blocks common to all HEMI engines, leading to head gasket failure or water pump leaks.
Common Issues at Higher Mileage — 2018 Dodge Charger
ZF 8-speed transmission may develop shudder or delayed engagement if fluid not serviced; early fluid change often resolves symptoms.
Water pump failure on 3.6L Pentastar V6 engines, often preceded by coolant seepage or bearing noise from the front of the engine.
Rear suspension bushings and sway bar links wear prematurely on all models, causing clunking over bumps and imprecise handling.
HEMI 'tick' from exhaust manifold bolt failure or lifter wear becomes more pronounced; may require manifold replacement or lifter service.
Alternator failure more common on high-output HEMI models due to increased electrical demands from performance accessories and cooling fans.
Front lower control arm bushings and ball joints show significant wear, particularly on AWD models and those driven in cold climates.
FAQ
How often does a 2018 Dodge Charger need an oil change?
The 2018 Dodge Charger oil change interval is every 10,000 miles or 12 months, whichever comes first (estimated cost $45-$90). 5.7L and larger HEMIs benefit from synthetic 0W-40; high-performance driving may warrant 5,000-mile intervals.
What maintenance does a 2018 Dodge Charger need?
The most important 2018 Dodge Charger services: engine oil & filter every 10,000 mi / 12 mo; tire rotation every 7,500 mi; brake fluid flush every 24 mo; brake pad inspection & replacement every 40,000 mi. See the full intervals table above for every service with estimated costs.
What are common Dodge Charger problems at higher mileage?
60,000+ mi: ZF 8-speed transmission may develop shudder or delayed engagement if fluid not serviced; early fluid change often resolves symptoms. 80,000+ mi: Water pump failure on 3.6L Pentastar V6 engines, often preceded by coolant seepage or bearing noise from the front of the engine. 70,000+ mi: Rear suspension bushings and sway bar links wear prematurely on all models, causing clunking over bumps and imprecise handling. 100,000+ mi: HEMI 'tick' from exhaust manifold bolt failure or lifter wear becomes more pronounced; may require manifold replacement or lifter service. 90,000+ mi: Alternator failure more common on high-output HEMI models due to increased electrical demands from performance accessories and cooling fans. 120,000+ mi: Front lower control arm bushings and ball joints show significant wear, particularly on AWD models and those driven in cold climates.
