Jeep Wrangler: FUEL REQUIREMENTS — GASOLINE ENGINE / 2.0L Engine and 3.6L Engine
		
		2.0L Engine
 This engine is designed to meet 
all emission requirements, and provide satisfactory fuel economy and 
performance, when using high-quality 
unleaded “regular” gasoline having an octane 
rating of 87, as specified by the (R+M)/ 
2 method. The use of 91 or higher octane 
“premium” gasoline will allow these engines to 
operate to optimal performance. This increase 
in performance is most noticeable in hot 
weather or other heavier load conditions, such 
as while towing.
 This engine is designed to meet 
all emission requirements, and provide satisfactory fuel economy and 
performance, when using high-quality 
unleaded “regular” gasoline having an octane 
rating of 87, as specified by the (R+M)/ 
2 method. The use of 91 or higher octane 
“premium” gasoline will allow these engines to 
operate to optimal performance. This increase 
in performance is most noticeable in hot 
weather or other heavier load conditions, such 
as while towing.
3.6L Engine
 This engine is designed to meet 
all 
emissions regulations and provide 
satisfactory fuel economy and 
performance when using high-quality 
unleaded “Regular” gasoline having an octane 
rating of 87 as specified by the (R+M)/ 
2 method. The use of higher octane “Premium” 
gasoline will not provide any benefit over 
“Regular” gasoline in these engines.
 This engine is designed to meet 
all 
emissions regulations and provide 
satisfactory fuel economy and 
performance when using high-quality 
unleaded “Regular” gasoline having an octane 
rating of 87 as specified by the (R+M)/ 
2 method. The use of higher octane “Premium” 
gasoline will not provide any benefit over 
“Regular” gasoline in these engines.
   While operating on gasoline with the required 
octane number, hearing a light knocking sound 
from the engine is not a cause for concern. 
However, if the engine is heard making a heavy 
knocking sound, see a dealer immediately...
   
 
   Reformulated Gasoline
Many areas of the country require the use of 
cleaner burning gasoline referred to as 
“reformulated gasoline”. Reformulated 
gasoline contains oxygenates and are 
specifically blended to reduce vehicle 
emissions and improve air quality...
   
 
   Other information:
   The Advanced Front Air Bag system has 
multistage driver and front passenger air bags. 
This system provides output appropriate to the 
severity and type of collision as determined by the Occupant Restraint 
Controller (ORC), which 
may receive information from the front impact 
sensors (if equipped) or other system 
components...
   
   This engine meets all required diesel engine 
emissions standards. To achieve these 
emissions standards, your vehicle is equipped 
with a state-of-the-art engine and exhaust 
system. These systems are seamlessly 
integrated into your vehicle and managed by 
the Powertrain Control Module (PCM)...