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Jeep Cherokee Fuel Types

5 messages,  Last post on Feb 13, 2008 at 10:43 PM

You are in the Jeep Cherokee and Jeep Grand Cherokee Forum.

What is this discussion about? Jeep Grand Cherokee, Jeep Grand Cherokee SRT-8, Fuel System, SUV

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#1 of 5 Jeep Cherokee Fuel Types by binarydragons

Feb 13, 2008 (7:14 pm)

A person at my work said his mechanic told him not to run anything but regular unleaded or he would damage his cadilac converter.
I told him I never heard of any vehicles that would damage there engine by putting 92 octane super unleaded in their vehicle. I have heard some vehicles require 92 octane, anything lower they will start ping-ing and will then get damaged, not the other way around.
Now this guy has a couple others at work believing him because his manual says the vehicle was designed for reg. unleaded.
Is this guy an idiot for saying this vehicle will only run on reg unleaded or am I thick for not believing him.

#2 of 5 Re: Jeep Cherokee Fuel Types [binarydragons] by steve_ HOST

Feb 13, 2008 (9:27 pm)

Replying to: binarydragons (Feb 13, 2008 7:14 pm)
It depends:
 
shipo, "What about fuel types & gas mileage?" #237, 18 Jun 2006 9:30 am
 
shipo, "What about fuel types & gas mileage?" #228, 9 May 2006 5:36 pm
 
And there's this:
 
"When you use a fuel with a higher octane rating than your vehicle requires, you can send this unburned fuel into the emissions system. It can also collect in the catalytic converter." TheServiceAdvisor
 
And another one that agrees with TheServiceAdvisor link:
 
jeckles, "Volvo C70 Fuel and Mileage Questions" #20, 11 Feb 2007 10:36 am

#3 of 5 Re: Jeep Cherokee Fuel Types [steve_] by binarydragons

Feb 13, 2008 (10:24 pm)

Replying to: steve_ (Feb 13, 2008 9:27 pm)
Thanks you were very imformative.
It looks like I need to work on my searching skills so that I don't
ask redundent questions.

#4 of 5 Re: Jeep Cherokee Fuel Types [binarydragons] by steve_ HOST

Feb 13, 2008 (10:43 pm)

Replying to: binarydragons (Feb 13, 2008 10:24 pm)
I'm sure I missed a few other angles on the regular/unleaded debate.
 
Then there's that whole "excessive idling can clog your cats" discussion out there too. Lots of fodder for bar bets, lol.

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