3.6L Engine; Reformulated Gasoline; Materials Added To Fuel- Page 484

2021 Jeep Gladiator Owner's Manual

Table of Contents

GETTING TO KNOW YOUR VEHICLE
GETTING TO KNOW YOUR INSTRUMENT PANEL
WARNING LIGHTS AND MESSAGES
STARTING AND OPERATING
MULTIMEDIA
SAFETY
OCCUPANT RESTRAINT SYSTEMS
SERVICING AND MAINTENANCE
VEHICLE MAINTENANCE
TECHNICAL SPECIFICATIONS
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482

TECHNICAL SPECIFICATIONS

 

3.6L E

NGINE

This engine is designed to meet all 

emissions regulations and provide 

excellent 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.

R

EFORMULATED

 G

ASOLINE

     

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.
The use of reformulated gasoline is 

recommended. Properly blended reformulated 

gasoline will provide improved performance 

and durability of engine and fuel system 

components.

M

ATERIALS

 A

DDED

 T

O

 F

UEL

  

Besides using unleaded gasoline with the 

proper octane rating, gasolines that contain 

detergents, corrosion and stability additives are 

recommended. Using gasolines that have these 

additives will help improve fuel economy, 

reduce emissions, and maintain vehicle 

performance.

Designated TOP TIER Detergent 

Gasoline contains a higher level of 

detergents to further aide in 

minimizing engine and fuel system deposits. 

When available, the usage of TOP TIER 

Detergent Gasoline is recommended. Visit 

www.toptiergas.com for a list of TOP TIER 

Detergent Gasoline Retailers.
Indiscriminate use of fuel system cleaning 

agents should be avoided. Many of these 

materials intended for gum and varnish 

removal may contain active solvents or similar 

ingredients. These can harm fuel system gasket 

and diaphragm materials.

G

ASOLINE

/O

XYGENATE

 B

LENDS

  

Some fuel suppliers blend unleaded gasoline 

with oxygenates such as ethanol.

Problems that result from using gasoline 

containing more than 15% ethanol (E-15) or 

gasoline containing methanol are not the 

responsibility of the manufacturer and may void 

the New Vehicle Limited Warranty.

CAUTION!

DO NOT use E-85, gasoline containing 

methanol, or gasoline containing more than 

15% ethanol (E-15). Use of these blends may 

result in starting and drivability problems, 

damage critical fuel system components, 

cause emissions to exceed the applicable 

standard, and/or cause the Malfunction 

Indicator Light to illuminate. Please observe 

pump labels as they should clearly 

communicate if a fuel contains greater than 

15% ethanol (E-15).

21_JT_OM_EN_USC_t.book  Page 482  

Detailed Information for 2021 Jeep Gladiator Owner's Manual

Lists of information found in 2021 Jeep Gladiator Owner's Manual - Page 484

  • 3.6L E NGINE This engine is designed to meet all emissions regulations and provide excellent 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.

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