I have to hook up my scanner and see what my fuel trims look like. I'm just curious because I'm running an older 96 4.0L with the larger exhaust ports, but with my 2000 intake manifold and fuel rail, plus an aftermarket header. I'm wondering if the breathing mods are causing it to add a little more fuel.

Also this is on 87 octane like Gunmetal said

I think my tires are only at like 33 psi or whatever the manual spec'd.

 

Octane has nothing to do with economy.

Also remember some of us are running 10% ethanol and losing a few mpg. I get 15-17 on e10 so about 17-19 on normal fuel.

 

Agreed, I always forget about that. In NJ we're definitely running 10% ethanol.

MPG also drops in the winter from all kinds of things. I noticed in my Altima I'll get 26-27 mpg in the summer and 23-25 in the winter.

 

Were not losing any thing, we are conserving precious natural resources (that with current use wouldn't last more than ~800 years anyways) by burning our food for fuel. We are a civilized society.

 

I really hope you are being sarcastic. Ethanol was the worst thing ever done to conventional fuels. It has use in high compression and turbo engines but not here.

 

I am of course, but now we will have to learn to eat crude oil to survive.

 

 

I know. Been running rotella 15-40. Think I'll bite the bullet and buy an 02 this weekend and make the switch to t5. Luckily I only work a mile from home and can't really drive it far with the control arms being so bad and causing major death wobble.

 

Hey atleast the corn was subsidized but you have to pay for it. LOLLLLL

 

15 mpg the first time I checked. My range seemed really great (300~ miles on one tank, mixed driving) and I filled up at around 1/4 tank.

 

I can't believe anyone would start a thread on XJ fuel mileage. This is not a Prius forum!

 

JMHO, if peeps would chart where a years worth of income actually goes they would see that fuel cost isn't even worth discussing. Thanks to burning our food for fuel ground beef scraps is now like $5.99/lb.

 

300 a tank?! I get half that and fill up with the gas light on.

 

Miles per tank is nonsense. (I'm being kind.)

The only measure that matters is miles per gallon, with miles measured accurately by a known good odometer or other reliable measurement (e.g., GPS), and gallons measured by what the pump says you put in the tank.

 

just doesn't add up. 300 miles a tank, 15 mpg that's 20 gallons and he fills up at 1/4 tank. What size tank does he have?! And it does matter to me because my range sucks. I can't drive long distance without having to fill up once or twice, where my sister and my parents can go like 300-400 before filling up.