The Dodge Challenger, an iconic American muscle car, has been a symbol of power and performance since its debut in the 1970s. Known for its retro-inspired design and robust engine options, the Challenger appeals to enthusiasts who crave raw power and a nostalgic driving experience.
The Dodge Challenger SXT and GT trims use regular 87-octane gasoline, while R/T, Scat Pack, and SRT models require premium 91-octane or higher for optimal performance, with 89-octane recommended for some V8s.
This article explores the fuel types recommended for various Dodge Challenger models, drawing from owner experiences, manufacturer guidelines, and technical insights to provide a comprehensive guide for current and prospective owners.
Overview of Dodge Challenger Engine Options
The Dodge Challenger has been offered with a range of engines over the years, each with specific fuel requirements based on performance needs and engineering design. The modern LA-platform Challenger, produced from 2008 to 2023, features several engine configurations, from V6 to high-performance V8s. These include:
- 3.6L Pentastar V6: Found in base models like the SXT and GT, this engine delivers 303 horsepower and is designed for a balance of efficiency and performance.
- 5.7L Hemi V8: Available in R/T trims, this engine produces 375 horsepower with an automatic transmission and slightly less with a manual, offering classic muscle car power.
- 6.4L Hemi V8: Found in Scat Pack models, this 485-horsepower engine provides enhanced performance for enthusiasts.
- 6.2L Supercharged V8: Used in SRT Hellcat and SRT Super Stock trims, this engine ranges from 717 to 807 horsepower, with the Demon 170 variant requiring specialized fuel for peak performance.
- Historical Engines: Earlier models, like the 1970s E-body Challenger, featured engines such as the slant-six and various V8s, while the 1978–1983 models used smaller four-cylinder engines in rebadged Mitsubishi variants.
Each engine has unique fuel needs, primarily determined by its compression ratio, tuning, and performance goals. Below, we delve into the recommended fuel types for these engines, focusing on the modern Challenger lineup while referencing historical models where relevant.
Recommended Fuel Types for Dodge Challenger Models
3.6L Pentastar V6 (SXT and GT)
The 3.6L V6 engine, standard in base Challenger models, is designed to run on regular unleaded gasoline with an octane rating of 87.
According to owner manuals and community discussions, this engine performs adequately on 87 octane, though some owners report using 89 or 91 octane to achieve smoother performance.
A 2022 SXT owner on Reddit noted that while 87 octane is sufficient, they were advised that higher octane (89 or 91) could improve engine responsiveness, though no significant mileage gains were observed.
However, using premium fuel in this engine is generally considered unnecessary, as it is not tuned for high-octane fuel, and the cost outweighs the minimal benefits.
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5.7L Hemi V8 (R/T)
The 5.7L Hemi V8, found in R/T models, is optimized for 89 octane “mid-grade” gasoline, as specified in the 2021 Dodge Challenger Owner’s Manual.
The manual states that this engine meets emissions and performance standards with an octane range of 87 to 89, but 89 octane is recommended for optimal performance and fuel economy.
Owners on forums like ChallengerForumz.com and LXForums.com report that while 87 octane is acceptable, it may lead to slight power loss or reduced efficiency, especially under heavy acceleration or in hot climates.
One owner mentioned that using 91 octane in areas where 89 is unavailable resulted in slightly better mileage (2–3 MPG) and cleaner injectors due to additives in higher-grade fuels.
Knock sensors in modern fuel-injected engines help prevent damage from lower-octane fuel, but 89 remains the preferred choice for consistent performance.
6.4L Hemi V8 (Scat Pack)
The 6.4L Hemi V8 in Scat Pack models also recommends 89 octane gasoline for optimal performance, though it can run on 87 octane without damage due to advanced knock sensors.
The higher compression and performance tuning of this engine benefit from mid-grade fuel, particularly in high-altitude or hot environments where lower octane can lead to timing adjustments that reduce power.
Owners on ChallengerTalk.com note that 89 octane provides a balance of cost and performance, with some experimenting with 91 octane for marginal gains in mileage and responsiveness.
The use of premium fuel (91 or higher) is generally reserved for tuned vehicles or specific driving conditions, such as towing or track use.
6.2L Supercharged V8 (SRT Hellcat, Super Stock, Demon 170)
The supercharged 6.2L V8 engines in the SRT Hellcat and Super Stock trims require premium unleaded gasoline with a minimum octane rating of 91 to support their high-performance output.
The 2023 Dodge Challenger SRT Demon 170, a limited-edition model, pushes this further, requiring E85 flex fuel (a blend of 85% ethanol and 15% gasoline) to achieve its maximum output of 1,025 horsepower and 945 lb-ft of torque.
E85 is necessary for the Demon 170’s extreme performance, as it provides the higher octane needed to prevent knocking under intense combustion.
However, E85 has lower energy content, which can reduce fuel economy compared to gasoline. Owners of non-Demon Hellcat models typically stick with 91 or 93 octane, as specified by Dodge, to maintain performance and avoid engine stress.
Historical Models (1970–1983)
The original E-body Challenger (1970–1974) used a variety of engines, including the 225 slant-six and V8s like the 340, 383, and 440.
These carbureted engines were less sensitive to octane ratings but generally performed best with mid-grade or premium fuel available at the time, equivalent to modern 89–91 octane.
The 1978–1983 Mitsubishi-based Challengers, equipped with 1.6L or 2.6L four-cylinder engines, ran on regular unleaded gasoline due to their lower performance demands.
These models are less relevant today but highlight the evolution of fuel requirements as engine technology advanced.
Factors Influencing Fuel Choice
Several factors influence the choice of fuel for a Dodge Challenger, beyond manufacturer recommendations:
- Driving Conditions: Hot climates, high altitudes, or heavy loads (e.g., towing) can lower the effective octane rating in the combustion chamber, making higher-octane fuel beneficial to prevent knocking.
- Ethanol Content: Most modern Challengers (except the Demon 170) are designed for gasoline with up to 15% ethanol (E15). Higher ethanol blends like E85 are not recommended for non-flex-fuel models, as they can reduce efficiency and damage components.
- Fuel Additives: Higher-octane fuels often include detergents that help keep injectors and valves clean. Products like Techron are recommended by some owners to maintain engine health.
- Driving Style: Aggressive driving, common with muscle cars, increases fuel consumption and may benefit from higher-octane fuel to maintain performance. A Scat Pack owner in Los Angeles reported averaging 8 MPG due to heavy acceleration in traffic.
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Fuel Economy Considerations
The Dodge Challenger is not known for exceptional fuel economy, prioritizing performance over efficiency. According to the EPA, the 2021 Challenger’s fuel economy varies by engine:
- 3.6L V6: 19 MPG city, 30 MPG highway, 23 MPG combined.
- 5.7L V8: 15 MPG city, 25 MPG highway, 18 MPG combined.
- 6.4L V8: 14 MPG city, 23 MPG highway, 17 MPG combined.
- 6.2L V8 (Hellcat): 13 MPG city, 22 MPG highway, 16 MPG combined.
Real-world fuel economy often depends on driving habits. Highway cruising can yield up to 26 MPG for V6 and 5.7L V8 models, while city driving, especially with frequent acceleration, can drop efficiency significantly. The 18.5-gallon fuel tank provides a range of approximately 250–480 miles, depending on the trim and conditions.
Dodge Challenger V6 Gas Type
The Dodge Challenger V6 runs on regular 87-octane unleaded gasoline. It doesn’t need premium fuel, and Dodge says premium won’t add extra power. Just avoid E85 or fuel with more than 15% ethanol for safe driving.
2022 Dodge Challenger Fuel Type
The 2022 Dodge Challenger uses unleaded gasoline. V6 trims take 87-octane regular, while V8 models vary: some can use 87–89, but Scat Pack and Hellcat require 91+ premium. Always check your engine type to pick the right fuel.
2013 Dodge Challenger Fuel Type
For the 2013 Dodge Challenger, the V6 works perfectly with 87-octane regular gas. But if you own an R/T or SRT model with a HEMI V8, it needs premium 91 or higher for smooth performance and safety.
2018 Dodge Challenger Fuel Type
In the 2018 Challenger, the V6 uses regular 87-octane gas. The 5.7L HEMI with automatic can use 87–89, while the manual 5.7L and all 6.4L or supercharged 6.2L versions require premium 91+ octane. Always check your trim.
2012 Dodge Challenger Fuel Type
The 2012 Challenger V6 runs well on regular 87-octane fuel. However, the R/T with a HEMI V8 does better with mid-grade or premium, while the SRT8 with 6.4L HEMI strictly needs premium 91 or higher gasoline.
2021 Dodge Challenger Fuel Type
For 2021 Challengers, the V6 engines use 87 regular, 5.7L HEMI automatics recommend 89, while 5.7 manuals, Scat Pack 392s, and Hellcats all need premium 91+ octane. Pick fuel based on your engine and driving performance needs.
2017 Dodge Challenger Fuel Type
The 2017 Dodge Challenger takes different fuel depending on engine. The V6 runs on 87 regular gas. The 5.7L HEMI automatic can use 87–89, but manuals and all bigger HEMI engines need premium 91+ for best results.
Dodge Challenger Gt Fuel Type
The Challenger GT has a 3.6L V6, which uses regular 87-octane gasoline. Premium fuel doesn’t provide extra performance here, so you can safely fill up with standard unleaded gas and save money while keeping your car running smoothly.
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What Gas Should I Use? V6 Gt Challenger
For a V6 GT Challenger, you only need 87-octane regular gasoline. Dodge says premium won’t make it faster or more powerful. Just avoid E85 or high-ethanol fuels, and stick with clean Top Tier regular gas when possible.
18′ Dodge Challenger Fuel Grade?
The 2018 Dodge Challenger’s fuel grade depends on the engine. The V6 takes 87 regular, the 5.7L HEMI automatic prefers 89, while manual R/T, Scat Pack, and Hellcat models all require 91+ premium to deliver safe performance.
Conclusion
Choosing the right fuel type for your Dodge Challenger is essential for balancing performance, efficiency, and engine longevity. The 3.6L V6 runs well on 87 octane, while the 5.7L and 6.4L Hemi V8s benefit from 89 octane for optimal results. High-performance SRT models, particularly the Demon 170, demand 91 octane or E85 for peak output. By following manufacturer guidelines and considering driving conditions, owners can ensure their Challenger delivers the thrilling experience it’s known for. Always consult your owner’s manual or the Dodge Drive app for model-specific recommendations, and consider occasional fuel additives to maintain engine health.
FAQs
What fuel type is recommended for a Dodge Challenger SXT?
The 3.6L V6 in the SXT is designed for 87 octane regular unleaded gasoline, though some owners use 89 octane for slightly smoother performance.
Can I use 87 octane in a 5.7L Hemi R/T?
Yes, the 5.7L Hemi can run on 87 octane, but 89 octane is recommended for optimal performance and fuel economy, as per the owner’s manual.
Does the Dodge Challenger SRT Hellcat require premium fuel?
Yes, the SRT Hellcat and Super Stock models require 91 octane or higher premium unleaded gasoline to support their high-performance engines.
Why does the SRT Demon 170 need E85 fuel?
The Demon 170’s 6.2L supercharged V8 requires E85 flex fuel to achieve its maximum 1,025 horsepower, as it provides the high octane needed for extreme performance.
Will using higher-octane fuel improve my Challenger’s fuel economy?
Higher-octane fuel may slightly improve mileage in V8 models (e.g., 2–3 MPG in some cases), but the impact is minimal in V6 models unless tuned for premium fuel.
What Kind Of Gas Do You Put In Your Challenger?
It depends on the engine. V6 takes 87 regular, 5.7 HEMI uses 87–89, while 392 and Hellcat need premium 91+.
What Are The Best Fuel Options For Dodge Vehicles?
The best fuel depends on your Dodge engine. Regular 87 works for V6, while HEMI and SRT models run strongest and safest on premium 91+.
Do You 392 Folks Use Mid Grade Or Premium Gas?
The 392 Scat Pack requires premium. Always use 91 or higher octane, not mid-grade, to keep the HEMI safe and performing at its best.
Can You Put 87 Gas In Hellcat?
Hellcat engines are supercharged and need premium 91+ octane. Putting 87 can cause knock, lower power, and even damage. Always stick with premium fuel.
Can I Put 93 In My Dodge Charger Rt?
Yes, you can. The Charger R/T runs on 89 recommended, but 93 works fine. Using 93 won’t hurt and keeps performance smooth.