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Old 03-07-2013, 01:48 PM   #1
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1998 Hemi Wrangler mpg help

Hello, I just bought a 1998 tj hemi wrangler v8. I am posting in this section because I don't really think it matters what kind of jeep it is just the year and that it has a hemi in it. Is there any way I can get better mpg? I did not total it up yet by how much I am getting but it would be great to get like 20 mpg lol if that is even possible. Any suggestions?

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Old 03-07-2013, 01:55 PM   #2
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Hmm, your only option might be to trade with another member :P

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Old 03-07-2013, 02:12 PM   #3
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Gotta ask....
Why would you buy a v8 if you're worried about mileage...???...
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Old 03-07-2013, 06:42 PM   #4
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because i do not want a v6 girl jeep like everyone and their brother has.
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Old 03-07-2013, 08:15 PM   #5
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I say no...
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Old 03-07-2013, 08:20 PM   #6
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I usually get 16-18 mpg with a 4.0 and a 5 speed. There's no way you'll get 20 with a hemi wrangler, even the brand new trucks and suvs with hemis barely reach 20. You're gonna need some weird magic to even dream about 20 mpg in a hemi wrangler.
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Old 03-07-2013, 08:22 PM   #7
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Well for starters we sort of need to have a base line MPG to tell you want if anything can help.. I have owned 2 hemi's(not in jeeps) I found for starters running hi test gas increased the MPG by 1 to 2mpg on long trips.. On avg I got around 17-19mpg on the highway.
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Old 03-07-2013, 08:45 PM   #8
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because i do not want a v6 girl jeep like everyone and their brother has.
Interesting, because TJ's never had a V6.....
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Old 03-07-2013, 08:54 PM   #9
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Interesting, because TJ's never had a V6.....
And if i'm correct neither did the CJ's or YJ's
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Old 03-07-2013, 09:04 PM   #10
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And if i'm correct neither did the CJ's or YJ's
Yeah, technically though the CJ-5 had the option for the Duantless V6. as far as the CJ-7 and up through TJ no.
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Old 03-08-2013, 06:19 AM   #11
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Well for starters we sort of need to have a base line MPG to tell you want if anything can help.. I have owned 2 hemi's(not in jeeps) I found for starters running hi test gas increased the MPG by 1 to 2mpg on long trips.. On avg I got around 17-19mpg on the highway.
I mean even 17 mpg would be great. It doesn't really matter because I have a tdi too. but id rather drive the jeep all the time. The jeep is for sale though.. so I have not got the chance to fill the tank and actually see what it gets.
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Old 03-08-2013, 06:22 AM   #12
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Interesting, because TJ's never had a V6.....

sorry crappy 6 cylinder like everyone's jeep has. people need to be different. get something someone doesn't have
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Old 03-08-2013, 06:25 AM   #13
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sorry crappy 6 cylinder like everyone's jeep has. people need to be different. get something someone doesn't have
the 4.0 is far from being crappy...
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Old 03-08-2013, 07:36 AM   #14
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The nice thing about having something a lot of other people have is that when shit breaks, there's a lot of brains to pick.

I hear you about wanting to be different though, whenever people see me getting out of my jeep, they look at me all puzzled and confused, trying to figure out if its plausible that it actually belongs to me.
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Old 03-08-2013, 09:41 AM   #15
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I mean even 17 mpg would be great. It doesn't really matter because I have a tdi too. but id rather drive the jeep all the time. The jeep is for sale though.. so I have not got the chance to fill the tank and actually see what it gets.
17 is probably not in the ballpark. People rarely get 17-18 with the I6. If you really want the best of both worlds, get a diesel.
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Old 03-08-2013, 09:55 AM   #16
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I mean even 17 mpg would be great. It doesn't really matter because I have a tdi too. but id rather drive the jeep all the time. The jeep is for sale though.. so I have not got the chance to fill the tank and actually see what it gets.
well if your selling I suppose it does not matter as much

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sorry crappy 6 cylinder like everyone's jeep has. people need to be different. get something someone doesn't have
FWIW.. the design of the new Hemi can be traced back in part to a 6cly... from Porsche.
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Old 03-08-2013, 10:12 AM   #17
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Quote:
Originally Posted by allison.kylie View Post
Hello, I just bought a 1998 tj hemi wrangler v8. I am posting in this section because I don't really think it matters what kind of jeep it is just the year and that it has a hemi in it. Is there any way I can get better mpg? I did not total it up yet by how much I am getting but it would be great to get like 20 mpg lol if that is even possible. Any suggestions?
What are your list of mod's now? lighten your load and driving habit can do a lot, but you wouldn't see a crazy difference.
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Old 03-08-2013, 12:02 PM   #18
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You realize you posted a question on how to get better something when you don't even know what you getting with that something right now. Figure out your mileage first then ask questions on how to get better mileage. If you have bigger tires on the jeep you also have to find out if the speedo gear was corrected so the speedometer registers the correct speed and mileage. Once you figure all of this out then we can help you figure out if better mileage is in your cards or not.
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Old 03-08-2013, 12:09 PM   #19
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Originally Posted by allison.kylie

sorry crappy 6 cylinder like everyone's jeep has. people need to be different. get something someone doesn't have
My 4.0 has almost 200,000 miles on it and is still goin strong!!
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Old 03-08-2013, 02:03 PM   #20
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17 is probably not in the ballpark. People rarely get 17-18 with the I6. If you really want the best of both worlds, get a diesel.

haha thats all i drive are diesels. this is my first gasser
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Old 03-08-2013, 02:08 PM   #21
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What are your list of mod's now? lighten your load and driving habit can do a lot, but you wouldn't see a crazy difference.
there are 35" tires on it which i no help 0 more hurt it. and i drive slow haha most of the times under the speed limit. I just ment like to the motor. I am new to gas cars. All I drove before were cummins and powerstrokes. so to get better mpg all you had to do sometimes was put an aftermarket part on to replace the stock on on the motor. And yeah.. it is easier to fix a 6cyl. that everyone else has but like i said you need to be different. if people didnt want to be different and make different cars and learn how to fix them everyone would be driving the same car no mods all stock all the same... pretty boring hu? That is why I have a hemi jeep and i refuse to drive a plain jane 6cyl. jeep. because everyone has one!
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Old 03-08-2013, 02:27 PM   #22
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sorry crappy 6 cylinder like everyone's jeep has. people need to be different. get something someone doesn't have
So let me get this straight...


You want a vehicle that is different from everyone else, but are looking to crowdsource information on how to improve it?
You do realize that knowledge is through experience, right? Which the base of that experience would be interaction and ownership... which wouldn't exist if something was unique.

In other words... quit contradicting yourself. Go get those chromed out 24" spinners and be different.
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Old 03-08-2013, 03:15 PM   #23
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Why do you care about MPG if it is for sale? Did I miss that?
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Old 03-08-2013, 03:24 PM   #24
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Better MPG? Easy, just follow these simple steps...

Remove your top completely, stash your spare tire, back seat, and doors in the garage.
Then mount some 255/75R15 load range E commercial grade radial tires and pump them up to 90 PSI.

Whoala 20 MPG!
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Old 03-08-2013, 05:21 PM   #25
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So let me get this straight...


You want a vehicle that is different from everyone else, but are looking to crowdsource information on how to improve it?
You do realize that knowledge is through experience, right? Which the base of that experience would be interaction and ownership... which wouldn't exist if something was unique.

In other words... quit contradicting yourself. Go get those chromed out 24" spinners and be different.
I would do that if i wanted to look like a freeken loser!
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Old 03-11-2013, 10:03 AM   #26
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there are 35" tires on it which i no help 0 more hurt it. and i drive slow haha most of the times under the speed limit. I just ment like to the motor. I am new to gas cars. All I drove before were cummins and powerstrokes. so to get better mpg all you had to do sometimes was put an aftermarket part on to replace the stock on on the motor. And yeah.. it is easier to fix a 6cyl. that everyone else has but like i said you need to be different. if people didnt want to be different and make different cars and learn how to fix them everyone would be driving the same car no mods all stock all the same... pretty boring hu? That is why I have a hemi jeep and i refuse to drive a plain jane 6cyl. jeep. because everyone has one!
Best solution, swap out the Hemi for a Cummins. Fixed !.....just kidding...

Wow factor and MPG's don't always work together, but at the end of the day you have a Hemi powered Jeep. A good intake, good spark plugs, and a good driving habit is the most you can do... Cylinder Deactivation is the only thing that saves real mpg in V8's.
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Old 03-11-2013, 04:01 PM   #27
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Old 03-11-2013, 08:43 PM   #28
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actually i am sure you have a 6 cyl like everyone else has. and my hemi is getting over 15 mpg.
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Old 03-11-2013, 10:49 PM   #29
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Old 03-11-2013, 10:55 PM   #30
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^im going with stupid. And extremely rude.

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