Such engines include the likes of the 6.4-liter HEMI V8 in the SRT-8 model and especially the supercharged 6.2-liter Hellcat V8 engine that powers the Trackhawk trim, both of which require 91-octane gas to achieve their advertised power figures.Įven older-gen engines, such as the 98’ Grand Cherokee Limited’s 5.9-liter V8 and the 3rd-gen model’s 6.1-liter V8 option, also share the need for premium fuel.Īs far as Jeep Grand Cherokee models that do not use gasoline are concerned, several generations actually come with diesel engines, though not all of them were released in North America.
The majority of engines released throughout the Jeep Grand Cherokee’s production run are designed to run perfectly fine on regular 87-octane gasoline, but this is only if you don’t go for the top-spec performance engines. Jeep Grand Cherokee models equipped with the 2007 to 2009 4.7-liter V to 2014 3.6-liter V6 engines can also take E85/Flex-Fuel. Gasoline-powered Jeep Grand Cherokee models can take 87 to 91-octane unleaded gasoline, while diesel variants can only take diesel fuel. What kind of gas does a Jeep Grand Cherokee take?
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