Ways to get better fuel mileage - Page 4 - JeepForum.com

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post #46 of 73 Old 03-22-2014, 11:16 PM
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Anything that increases airflow in or out of the engine will help. Also reducing parasitic losses. Switch to electric fan. High flow exhaust. With the 2.5 installing the larger throttle body from a 4.0 increases airflow. An oilpan with a scraper and windage baffles can help(mostly high rpm for this one). Make sure you don't have a brake dragging. As an added bonus this all means more power. Especially for the anemic 2.5.

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post #47 of 73 Old 03-27-2014, 09:14 AM
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Get a programmer (chip) that has a tune for high mileage. You'll definitely lose power but if you've got a lead foot like I do it'll definitely keep your fuel and maintenance expenses low. Granted, they can get expensive quickly but within a few months to a year it will definitely pay for itself.

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post #48 of 73 Old 03-27-2014, 12:56 PM
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Quote:
Originally Posted by TwitchyVirus View Post
Get a programmer (chip) that has a tune for high mileage. You'll definitely lose power but if you've got a lead foot like I do it'll definitely keep your fuel and maintenance expenses low. Granted, they can get expensive quickly but within a few months to a year it will definitely pay for itself.
Care to show some evidence that backs up your claims that this chip works on a Jeep?

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post #49 of 73 Old 03-27-2014, 01:14 PM
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Quote:
Originally Posted by TwitchyVirus View Post
Get a programmer (chip) that has a tune for high mileage. You'll definitely lose power but if you've got a lead foot like I do it'll definitely keep your fuel and maintenance expenses low. Granted, they can get expensive quickly but within a few months to a year it will definitely pay for itself.
What brand?

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post #50 of 73 Old 03-27-2014, 01:30 PM
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Care to show some evidence that backs up your claims that this chip works on a Jeep?
http://www.hypertech.com/user-reviews.aspx

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When people ask; Why does it have a rollbar? Is it dangerous? And you can actually reply "yep".
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When you have to say to your friends at least twice during any given drive..'dude its a jeep relax.'
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post #51 of 73 Old 03-27-2014, 01:34 PM
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What brand?

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Hypertech comes highly recommended from one of my Jeep advisors. He's running one in his '04 TJ and it's a noticeable difference from before.

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When people ask; Why does it have a rollbar? Is it dangerous? And you can actually reply "yep".
Quote:
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When you have to say to your friends at least twice during any given drive..'dude its a jeep relax.'
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post #52 of 73 Old 03-27-2014, 02:15 PM
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Quote:
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Care to show some evidence that backs up your claims that this chip works on a Jeep?
Alright, I've goofed up here. I'm confusing the EFI Live on my K5 with a plug and play programmer. It seemed a little confusing and I hadn't completely caught on until I started reading reviews myself. That's my mistake guys!

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When people ask; Why does it have a rollbar? Is it dangerous? And you can actually reply "yep".
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When you have to say to your friends at least twice during any given drive..'dude its a jeep relax.'
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post #53 of 73 Old 03-27-2014, 02:42 PM
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Quote:
Originally Posted by TwitchyVirus View Post

Alright, I've goofed up here. I'm confusing the EFI Live on my K5 with a plug and play programmer. It seemed a little confusing and I hadn't completely caught on until I started reading reviews myself. That's my mistake guys!
I was going to call BS on you but you figured it out in your own. My brother fell into the Hypertech chip hype for his TJ and was sadly disappointed when it didn't do what they said it would do.

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post #54 of 73 Old 03-31-2014, 11:52 AM
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It's simple. Never exceed 65 MPH and shift around 2k RPM. the highest recorded mpg I've got in my TJ is 15.9 and that was 3/4 highway miles. 12 mpg from driving around town. It's just one of those things where you need to be thinking about it all the time when driving.

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post #55 of 73 Old 03-31-2014, 02:18 PM
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I've gotten up to 18 mpg with my mostly stock TJ. That's mostly highway driving and not driving more then 65 mph. I also use cruise control as much as possible. I did spend like $35 on an econoaid from airaid. It's like a throttle body spacer but it's thin and has blades that "spin" the intake air. Could just be snake oil but I thought, "Heck, for $35 it's worth a shot."
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post #56 of 73 Old 03-31-2014, 04:42 PM
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I've gotten up to 18 mpg with my mostly stock TJ. That's mostly highway driving and not driving more then 65 mph. I also use cruise control as much as possible. I did spend like $35 on an econoaid from airaid. It's like a throttle body spacer but it's thin and has blades that "spin" the intake air. Could just be snake oil but I thought, "Heck, for $35 it's worth a shot."
I made 20mpg a few times back when my Jeep was largely stock and 21mpg once. Now with 33's and a small lift installed as of a few months ago, I have been floating around 15-18mpg depending on where I drive. My only engine modification is a Windstar cowl intake. The only other one I am considering are Bosch 4 port injectors from a Caravan.

Your spinning throttle body spacer didn't do a thing except cost the same as 3/4 of a tank of gas. All that "spun" air is meaningless the moment it enters the intake manifold. Take a look and see where the fuel gets added. Its nowhere near the throttle body.

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post #57 of 73 Old 04-05-2014, 08:55 AM
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I'm on amazon looking at obd2 Bluetooth tools. There are a lot of them. Which one is recommended?
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post #58 of 73 Old 04-05-2014, 09:12 AM
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Read the Amazon reviews since people are pretty good about stating how well the readers work with Torque. There really only seem to be three different types that get endlessly repackaged. Mine is one of ones with the black case. However in the Jeep, it sticks out too far past the dashboard and I have kicked it free too many times getting in and out. Your post just made me buy one of the translucent blue ones with a shorter body.

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post #59 of 73 Old 04-10-2014, 11:00 AM
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If you care about gas mileage you should be driving a jeep.
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post #60 of 73 Old 04-10-2014, 11:21 AM
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i have read were those spinning blades have come apart too. That can end in a "Houston, We've Got a Problem" moment. Worse than snake oil.


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