Took a trip to KC on Saturday morning to watch the Nascar Busch Race. I filled up before we left (91 octane) and when we got back 365 miles later, I still had 1/4 tank left. At this point, I have a little bit less than 1/8 and have driven 405 miles. The first 365 were all highway, pretty much 80 mph the whole way. The rest have been in town. With my old injectors, my best was 325 to a tank.

This is even more suprising considering that after the swap, I got 250 on my first tank I ran through it. Guess the ECU has gotten used to them.

 

Nice dude! I'll have to think about doing that. Gas gets expensive...Specially up in KC...i pay about 1.89 for 93 down where I live.

 

Lucky bish. dont wanna turn this into another gas mileage thread, but best we get up here in PA is about 2.10 for 93.

 

you lucky bastards!! im paying like.. 2.30!! damn chicago....

 

impressive BSwithTF. where did you get your injectors from?

 

So you think that 00 injectors provide better gas mileage? Well is the performance the same? Are you 100% sure of your findings? U get better mileage with highway driving..

I mean if you can back this up then you might have found the holy grail of mods ...

Proph

 

I am right over 2.00 in Dallas. I also use the Wal-Mart gas card to get discount... INteresting about the injectors. Do they fit the same as 99? I am not sure what the size difference is. Also, how much were they? From Nissan dealer? or where?

 

Heh, heh. I don't just have the injectors. I did the '00 VI swap awhile back. So technically, I have the Upper and Lower manifolds and injectors. I also removed the EGR system so I could use the '00 TB with the 5th gen IACV. Unfortunately, you can't swap just the injectors.

This was the first FULL tank I've run through it since the first tank when I completed the swap. I haven't checked for knock codes with the 91. I may run 91 through the winter months if there aren't any codes. I haven't noticed the timing getting pulled on my Techtom so I may be okay. I'm running a JWT ECU is the reason I'm worrying about 91. I had some knock problems in the past with the MEVI and the old injectors whenever I ran 91.

 

lucky i just filled up today and found out i got only 17 mpg with the last tank

 

damn its bout 2.30 here also i wish it was 1.89

 

my god 1.89...i go to school in LI NY and i pay 2.27

 

I think you mean you had 1/4 tank left right?

On road trips, with consistent 75-80mph driving - I always get 27-28 mpg.

 

bull

 

On my stock injectors I can touch 450 a tank (and that actually means a tankful, needing about 17gal to fill it back up), so I'm wondering what's the big deal here...

 

So you got 365 miles using 1/4 tank and then you got 40 miles on 5/8 tank? Guess your gauge isn't working right or it just reads the first few gallons slower. That's why people say not to count your gas mileage the way you did, only using 1/4 tank.

 

Im getting around 400+ a tank, 70% highway. 91 octane (all we can have in CO) and it costs about $2 a gallon, give or take a few pennies. I think its all on how you drive really.

 

Local Chevron in San Jose area has 91 octane selling for $2.55/gallon.

 

im happy with mine right now i get like 400+ tank too

 

that's around what we're paying here in socal too!! it's frackin crazy!

 

I'm going to go out on a limb here and ask somethign really stupid...

VQ30DE 4th gens
VQ30DE-K 00-01 5th gens

So wouldnt putting the 00 Intake like you did make it basically the same engine? Wouldnt you have gas mileage just a little bit better than a 5th gen... considering your car is a little lighter.

 

I bet it's just because your old injectors were really dirty, and putting clean injectors in makes any engine run better.

 

Well not JUST cali but thats true, 2.53 gallon for me.
I never get more than 330 miles on a tank... I would be amazed to get 400 miles on one tank, Maybe I should take a road trip since 80% of my driving is downtown/city.

 

No contest. In San Francisco, 91 Chevron averages out to about $2.70. I even saw $3.00 at a Shell !!! a SHELL FOR CRYING OUT LOAD !!!!

 

Damn, I knew I was going to screw up how I worded it.

When I got home I had USED 3/4 a tank of gas and had gone 365 miles. I apologise for the error. I'm sure there are people who get these kind of mileages but for my car this is incredible.

I will go back and edit the initial post. Sorry for the confusion.

 

I average about 24-25 mpg 60% highway. Works out to around 400 before I fill up.

 

Travis-

That's some pretty good MPGs. These cars really seem to like the highway, especially the lower geared autos and with the mild weather. It's not uncommon for me to get around 28mpg on straight highway driving (75mph/3000rpms). It looks to me like you were getting around 30mpg.

 

On pure highway driving, going 80+ I get 450+

 

Im in BFE Tennessee, and I pay $1.96 for 87

ehhhh

Should Maximas be using 93? I hope I havent been putting the wrong shi0t on my cars tummy. Man, that would suck. Ehhhhh

I get 340 miles per tank (give or take 5)

 

and thats in the city .. never was on the highway long enough all at one point, I always fill it back up at about 1/4 tank left .... I am going to run it and see how many miles I get Highway.

**W OOHOOOO new project**

 

blah gas exxon 2.25 long island ny 93oct

 

Hey guys, Up here in Canada our 91/92 octane is at least 95 cents per liter to $1.05 per liter which converts to (3.78 liters =1 US gallon) $3.02 Can per Gal to $3.97 Can which with the exchange rate is approx $2.24 US per US gallon to $2.94 US per US gal! !!
OUCH!

 

I drove from Savannah GA to NY and got about 380 miles to the tank. One tank I got 400. I just kept it on the speed limit. And my injectors are original.

but my city mileage sucks. I get like 18mpg

I dont think the 00 injectors are any different. Maybe just new injectors is what your car needed.

I also use a magnetic fuel saver now. Still havent driven long distance with that in place. It did help my city mileage a little.

 

I just drove to NYC and back yesterday to drop off my wife's cousin and that was about 220 miles each way. I broke 80 probably twice but kept the cruise set at 75 90% of the round trip. The most I've gotten stock was 463 miles on one tank. I'd like to see what I get now that I'm modded. I want to test that when I do my next long haul trip (maybe Maxus 2005).

 

and we dont even get 93 octane!!!! we pay too much for 91, you guys are lucky as hell, and dont complain!!!

 

Manual says atleast 91. I always use 93. Get better gas mileage and performance and is better for the engine. Costs a little more at the pump but with the better mileage ends up costing the same over time.

 

man if you dont cross the bridge over to jersey and get it for about $1.90

 

Just a sanity note:

The post was about an almost empty tank judged by the not very accurate dash fuel guage and tested once.

Before any conclusions can be drawn, we need a consistent, accurate and repreatable method of testing with multiple tests.

"feels like..." is not accurate information.

In addition, there are so many other variables on the test car, like the whole 2000 variable intake system - lack of EGR etc. that I can't find any parity with my near stock car. Nor can we point to just the injectors.

Interesting thoughts on saving gas milage but careful of rushing to conclusions.

Mr.P

 

i get 400 miles to a tank on all original injectors, spirited driving, and i pay 2.27 for 93

 

thats not Incredible gas mileage.i drove to phoenix this last weekend driving between 80 and 100 and i got 435 miles to my tank..

2.49 here in calif

 

Cali gas will kill poor students w/maximas

Filled up today and had 10 gallons for 244 miles. not bad i say, not bad