2008 Jeep Grand Cherokee Owners Manual

STARTING AND OPERATING
337
5.7L
Engines (If Equipped)
The  5.7L  engine  is  designed    to  meet  all
Poor  quality  gasoline   can  cause  problem s  such  as hard
starting,  stalling  and  hesitations.   If you  experience  these
sym ptom s, try  another  brand   of gasoline  before  consid -
ering  service  for the  vehicle.
emissions  regu lations  and provid e satisfac-
tory  fuel econom y  and perform  ance  when
using  high  quality  unlead ed  gasoline  hav-
ing an  octane  range of  87 to 89. The manu -
factu rer recom mend s the  use  of 89  octane
Over 40 auto  manu factu rer’s world  wide have  issu ed and
end orsed  consistent   gasoline   specifications   (the  World -
wide   Fuel  Charter,   WWFC)   to  define   fuel   prop erties
necessary   to  deliver  enhanced   emissions,   perform  ance,
and  durability  for you r vehicle.  The manu factu rer recom - 5
mend s the  use  of gasoline   that  meets  the  WWFC  speci-
fications  if they  are  available.
for optimum   perform ance.  The  use of prem ium  gasoline
is not recom mend ed. Und er norm al cond itions,  the use of
prem ium  gasoline   will not  provid  e a  benefit  over  high
quality   regu lar  and  mid-grad  e  gasolines,  and   in  som e
circumstances   may  resu lt in poorer   perform ance.
Reformulated Gasoline
Many  areas   of  the  country   requ ire  the  use   of  cleaner
burning  gasoline  referred  to as  “Reform ulated  Gasoline.”
Light spark  knock  at low  engine  speed s is not harm ful  to
you r engine.  However,   continu ed  heavy  spark  knock  at
high  speed s can  cause damage   and  immediate   service is
requ ired .
Reform ulated  gasoline  contains  oxygenates,   and are  spe-
cifically  blend ed  to   red uce  vehicle  emissions   and   im-
prove  air  quality.
Product Specification
CategoriesJeep Grand Cherokee Manuals, Jeep Manuals
Model Year2008
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- 490 pages
Document File TypePDF
CopyrightAttribution Non-commercial
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