Dodge & Ram Flex Fuel Vehicles

Factory FFV models

Chrysler Group — today Stellantis — produced flex-fuel vehicles under the Dodge and Ram banners from 2004 through 2020, with the peak years running from 2011 through 2015. The Ram 1500 4.7L V8 (2004–2008) was the brand's first widely sold FFV pickup, and the 3.6L Pentastar V6 (2011–2018) was its last. The Pentastar's FFV story is a useful cautionary tale: from 2011 through 2015, the original "ERB" Pentastar shipped as a factory flex-fuel engine across Ram 1500, Durango, Grand Caravan, Journey, Charger, Challenger, and Avenger. When Chrysler revised the Pentastar in 2016 with two-stage variable valve lift and higher compression (the "ERC" version), flex-fuel certification was dropped across nearly the entire lineup. The Dodge Grand Caravan held on longest, continuing as an FFV through its final model year in 2020.

One persistent myth deserves correction: the 5.7L HEMI V8 was never a factory flex-fuel engine in any U.S. Ram, Dodge, Chrysler, or Jeep vehicle, despite the widespread assumption otherwise. Anyone running E85 in a HEMI is using aftermarket hardware and tuning.

Dodge & Ram flex fuel models

Model	Year range	Engine	Notes
Ram 1500	2004–2008; 2011–2018	4.7L PowerTech V8; 3.6L Pentastar V6	5.7L HEMI never factory FFV
Ram 1500 Classic	through ~2019	3.6L Pentastar V6	Gen-5 DT platform dropped FFV
Dodge Dakota	2007–2011	4.7L V8
Dodge Durango	2006–2008; 2011–2015	4.7L V8; 3.6L Pentastar V6	FFV dropped with 2016 Pentastar upgrade
Dodge Grand Caravan	2006–2008; 2011–2020	3.3L V6; 3.6L Pentastar V6	FFV through final model year
Dodge Journey	2011–2019	3.6L Pentastar V6
Dodge Charger	2011–2014	3.6L Pentastar V6	SE/SXT trims only; not HEMI
Dodge Challenger	2011–2014	3.6L Pentastar V6	SXT only; not HEMI
Dodge Avenger	2008; 2011–2014	2.7L V6; 3.6L Pentastar V6
Dodge Stratus	2003–2006	2.7L V6

Dodge & Ram-specific E85 tips

The HEMI is not an FFV.

This bears repeating because dealer marketing and online forums confuse it constantly. The 5.7L, 6.4L, and 6.2L supercharged HEMI engines in Ram, Charger, Challenger, 300, Durango, and Grand Cherokee have never been factory flex-fuel. If you want a Dodge or Ram that runs E85 from the factory, you are looking at the 3.6L Pentastar V6 or the older 4.7L PowerTech V8.

The 2015-to-2016 Pentastar transition is the key cutoff.

The original 3.6L Pentastar (ERB engine code, 2011–2015) was FFV. The revised 3.6L Pentastar (ERC, 2016 onward) is not. If you are shopping a used Grand Cherokee, 300, Charger, or Durango from this era, the 2014 and 2015 model years are FFV and the 2016-and-later cars are not — regardless of trim.

No fifth-generation Ram 1500 is an FFV.

When Ram redesigned the 1500 on the DT platform for 2019, flex-fuel capability was dropped entirely. The Ram 1500 Classic (the carryover fourth-gen body sold alongside the new truck through 2024) retained FFV on some 3.6L V6 units through 2019, but any modern Ram 1500 with the big grille is gasoline-only from the factory.

Grand Caravan is the sleeper FFV minivan.

From 2011 through 2020, virtually every Dodge Grand Caravan with the 3.6L Pentastar was a flex-fuel vehicle. Used Grand Caravans are abundant and cheap, and for families who want a practical E85 people-mover, they are one of the best-value FFVs in the used market.