My 2001SE is giving 17mpg( 50/50 highway/city) which I think is very less even accounting for cold weather and short commutes. Is it typical for people driving in cold(read below freezing) weather?? I use 87 Regular gas. Does using premium gas help much with mpg?? Also what kind of maintenance would help improve mpg on maximas?? Don't know if its a repeat thread... don't care really... Please respond if you'd like to.... Thanks in advance..

On a side note.. I see lot of people saying the engine makes a pinging noise or knocks if lower grade fuel is used.... How does it feel exactly...?? How and where do u feel it??

 

lol...one number 93...use it son and stop being cheap. number 2...go through your regular tune up routine also chk tire pressure

btw the absolute best i've gotten is 24mpg so far..i usually get around 22-23. but i havent done any of the following posted yet b/c money is short

 

Wow... yes, start using good gas

 

87 is not even an option in the owners manual. I beleive it says 91 or higher 89 is exceptable but 87 no way. I beleive higher octane gas gets better milage by my experience but with the cost of gas I understand. You should always use no less then what the book recomends.

 

regular oil changes with synthetic oil, changing air filter regularly, correct air pressure in tires, not over reving, gentle acceleration, clean out your trunk.

basic stuff

 

I had a 2001 Maxima GLE and I always used 93 Octane. I could usually get about 400 miles out of a tank of gas in a mix of city and highway driving. One day I pushed the 87 button at the gas station and walked into the store to get some lottery tickets. When I came out I realized what I had done and figured that I would just drive it out. The car was empty (when the guage flashes twice) at 250 miles!!!!!

So hell yes, the octane rating makes a difference. Stick with the 93 octane in all Nissan/Infiniti Cars with a VQV6 engine!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

 

come on use 91 - 93

 

The one time I put in regular by mistake my check engine light came on.

 

wow... use the premium stuff buddy.. it's right in the owners manual

 

 

why is there a thread for this WTF???

I use 1000000000 octane, its spaceage stuff

 

 

Race fuel/

 

I've been using 91 since it was the highest I was aware of. Just recently I found a pump in town that has 94 octane, but since the Maxima is parked until spring, I haven't had a chance to try it out yet... I ran the Max on 87 one time by accident, and got terrible mileage, no pinging that I noticed. Premium FTW!

 

Why people always think normal cars like maxima and accord should use regular gas? because they are not as good as BMWs and BENZs?
Which gas should be using is really depends on what kind of engine and compress ratio.

 

You should!

 

Well, my guess is that most people don't know the compression ratio of their engine, and unless it's supercharged or turbo charged, they assume premium isn't neccessary... I didn't really know premium should be used for the 3.5L, but before I bought the car, I did enough reading on here to figure that out.

 

wow thought I was the only one

 

For a while I was a cheap azz and went with mid grade. I noticed a weird rattling/pinging noise and thought my engine was on the way out. Switched to premium and engine sounded like butter again. Take it for what it is worth. You are really only saving a few bucks not using premium.

 

the "enough reading" part was what he failed to do before starting thread number 239034 on "which gas do i use..i'm cheap"

 

The Owner's manual says that 91 is recommended, but 87 is acceptable when 91 is not available. It also says that for best performance, use 91. I'm assuming that the timing is slightly adjusted by the ECU to accomodate the properly of cheap gas. With regard to MPG, I haven't noticed much between 87 and 91. With 87 in winter, mostly short trips and city driving, worst I've got is 15MPG, and it is not that uncommon. Average winter is about 20. In summer, even with full capcity (5 people + luggages) with A/C, the best I've got is 28MPG with full highway driving.

 

Are people able to search... the option is open to all of you... RTFM... Use the search button... use google... DONT Make a Thread everytime you have a question such as this... do a little searching, because in all honesty...

 

Okay, I'd like to respond. You're welcome, in advance.

(read: :attention )

Very nice attitude. It's because of people like you that this forum is so cluttered with useless, repeat threads.

You now have access to the search function.

http://forums.maxima.org/search.php

Please use it.

In case you don't care to, these are all related to MPG and Octane questions. There are another 15 pages of such.

http://forums.maxima.org/showthread.php?p=4690902
http://forums.maxima.org/showthread.php?p=3963753
http://forums.maxima.org/showthread.php?p=4589655
http://forums.maxima.org/showthread.php?p=4690902
http://forums.maxima.org/showthread.php?p=4314732
http://forums.maxima.org/showthread.php?p=3502753
http://forums.maxima.org/showthread.php?p=2941995
http://forums.maxima.org/showthread.php?p=1472745
http://forums.maxima.org/showthread.php?p=6178075
http://forums.maxima.org/showthread.php?p=4717258
http://forums.maxima.org/showthread.php?p=1431708
http://forums.maxima.org/showthread.php?p=243630
http://forums.maxima.org/showthread.php?p=1478687
http://forums.maxima.org/showthread.php?p=1261144
http://forums.maxima.org/showthread.php?p=2612120
http://forums.maxima.org/showthread.php?p=671372
http://forums.maxima.org/showthread.php?p=2461553
http://forums.maxima.org/showthread.php?p=2564977
http://forums.maxima.org/showthread.php?p=657474
http://forums.maxima.org/showthread.php?p=1370061
http://forums.maxima.org/showthread.php?p=553761
http://forums.maxima.org/showthread.php?p=841558
http://forums.maxima.org/showthread.php?p=658081
http://forums.maxima.org/showthread.php?p=3609389
http://forums.maxima.org/showthread.php?p=2293588
http://forums.maxima.org/showthread.php?p=3877431
http://forums.maxima.org/showthread.php?p=1776097
http://forums.maxima.org/showthread.php?p=4162589
http://forums.maxima.org/showthread.php?p=3053175
http://forums.maxima.org/showthread.php?p=1290695
http://forums.maxima.org/showthread.php?p=3460441
http://forums.maxima.org/showthread.php?p=2485449
http://forums.maxima.org/showthread.php?p=745749
http://forums.maxima.org/showthread.php?p=40143
http://forums.maxima.org/showthread.php?p=1982057
http://forums.maxima.org/showthread.php?p=712533
http://forums.maxima.org/showthread.php?p=1162014
http://forums.maxima.org/showthread.php?p=4062839
http://forums.maxima.org/showthread.php?p=1571848
http://forums.maxima.org/showthread.php?p=2402948
http://forums.maxima.org/showthread.php?p=2473566

And, in short: Thanks for playing, kthxbye.

 

 

i've been into honda's and toyota p/u's my whole car life as far as dealing with them and knowing most of their specs...what is the C/R on the vq30 and vq35?

 

I use diesel

Its posted and in several books.

 

rubbing alcohol baby FTW baby!!!
makes it pull wheelies!!!

 

I fill up with dimethyl ketone

 

got a free tank of gas when the gas attendent filled me up with regular. I told the owner i was not paying we arguied for a 2 min after he realized that i was right and we wentour separate ways.

 

care to post it since i'm sure it's your common knowledge

 

i would have posted if it if i remembered what it was, but its out there, im sure if you go in google and search the vq30de it will come up

 

Care to search?

Here you go.

http://vq35de.com/ESM/Nissan/Maxima/

 

VODKA FTMFW WOOT WOOT

 

i type that in, i typed in vq30 compression ratio (not vq35 compression ratio because i am more concerned with the engine i have) and nothing came up

maybe i did search and my wording was off...the search engine is not human, they dont understand what you are trying to look for, they only output what you input

 

I typed in "vq30de compression ratio" google and found it in the first link to wikipedia.

10:1

http://en.wikipedia.org/wiki/Nissan_VQ_engine

 

Fail.

'vq30 compression ratio' in the org search, 3rd link - http://forums.maxima.org/showthread....mpression+vq30

'vq30 compression ratio' in google, 1st link - http://en.wikipedia.org/wiki/Nissan_VQ_engine

Double fail.

They don't 'output what you input'. Tape recorders do that. Computers process information and (in the case of search engines) return results based on a query.

I don't believe you searched at all, but that's just my opinion...

 

Premium all the way, u take a chance of killing sensors when you use the cheap stuff.

 

what about costco gas

 

Advanced timing when at cruising speed will give better mileage and premium fuel allows the timing to run more advanced than regular. We have 93 octane premium here and that is what I've been running since I bought the car.

My worst tank this winter (pretty much all city driving and sitting at stoplights because traffic engineers are retards) was 18.4 mpg.