My 93 5.2lt gas mileage suuuucks. Best ever was 18 mpg. Normal is 16 mpg. I have not taken the air box out for a real good look see. Are there baffles in the thing that could be removed to help? As Im driving 40 miles 1 way everyday, Im not looking forward to gas bill.

Thanks
Ron

 

No baffles. You're getting the same mileage as me and I have the 4.0, and you drive the same amount as I do everyday. 80 bucks a week for gas is cheaper than a car payment.

 

You are doing pretty good for that motor!

 

x2 im getting 9mpgs with my 4.0.

 

Refer to your owner's manual and be sure to follow all steps in there.

 

I'd literally do backflips for 16 mpg's! I'm at 9 mpg w/ 5.5" and 35's. Though it should go up a bit, I just swapped out the O2 sensor, cuz it was bad.

 

No baffles, but that is about the stupidest setup I have seen for awhile! Broke one of the bolts off, the other 2 just spin. Once I finally got the box out, there is additional "air space" below the box that could be gotten too. So I cut a chunk out of the bottom of the box to allow more air and easier time to enter. Im thinking about removing the front of the snorkel that goes to the grill, why bother venting it up there, if your going to slap a lip on it to avoid ram air?

My other thought is:
http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT
Use something like this, but cut the steel under the airbox out so it fits down low. That should give it air as it flow from around the back side of the bumper. Dragging air from directly inside the engine compartment, is not my idea of a better way.

Ron

 

The problem with that open filter like that, and placing it even lower only makes it that much more exposed. Any mud, water, or more dirt/dust is going to get all over that filter losing any gains. I don't run an open filter like that because so much more dirt/dust gets by them, and I don't want that crap in my engine. Placing the air filter element lower also opens up the possibility of sucking water up into there and screwing you big time unless you like water in your engine...

 

But sucking water into the engine will increase the compression ratio by leaps and bounds...for a short time...until the rods bend or the engine hydro locks.

 

You know how i get better mpgs? I got a passat that gets 36 mpgs... best way i can see lol!

 

The best way to up your gas mileage is to just be careful how you drive. No bolt on or accessory will give you more MPG than to drive really easy. keep it under 2kRPM.

 

I'm gonna go outside right now with a hose and do this ^^^. That's way better power.

If you want the best mileage then park the Jeep. It can't even compare to newer cars with their MPG's. I love the people that get on here that want their Jeeps to have respectable fuel mileage. Brand new, the sticker said my V8 got 18 mpg in the city...

 

Mine was like 12 and 16 new as far as mileage goes.

Before I go to fiddling anymore with the air filter, as I have already punched a hole in the bottom of the box. I did cover it with a fine mesh of aluminum screen (window screen)to block most of the crap out. Keep in mind this is in front of the Primary filter anyway. Not much is going to get by it. Im going to build a spacer for the top of the Tbody. The entrance there is not exactly smooth. Im thinking Ill start with just 1 inch and see if it hits anything.

I will say that the company Dodge Ram, with the small V8 routinely got 20mpg, and when running down hill from the Mountains to the Coast, on cruise it would get 22mpg!

Ron

 

One thing I did not mention.......
The closest this thing will get to off road is the Gravel Driveway in front of my house.

Ron

 

Now that is a shame.