same here, since i'm in cali. why is 91 the highest in california and all the other states get 93+

 

yea man, why? we need 93 too man. this is CALI, capital of car world!

 

we also get cali emission cars, with more restrictions, and harder emission tests

 

Nothing but 93+.

 

Arco 93 Octane (or maybe it was 92). Either way it does not ping with a 20* advance + knock sensor resistor. From my experience, it is the best pump gas you can buy, but to each his own.

 

PREMIUM GAS FOR A MAXIMA?....i dont know that much about cars...but i dont think that the maxima has a 10 to 1 compression ration...therefore regular gas is all you need.... premium or 91 octane isnt gona do you any more bit of a difference that 87... UNLESS you have a 10 to 1 compression engine in your max... i have a 95 and it isnt...i dunno why you guys are waisting your money lol... u get the same HS using regular....

Correct me if im wrong...but i will only believe u if i see it in writing

-=XeroX=-

 

I have used and rode in my parents Maxima(s) with 87 my whole life. Just last week I switched to 93 octane in my Max, and I could feel the difference. Going up steep hills doing 40, with 87 octane the car would have to kick down a gear. 93 just keeps pulling strong.

Your RPMs drop a bit as well. With 87 octane when I would cruise around 50 MPH I would be at 2K. Now with 93 I'm at about 1,700K. I have to get to about 58 MPH to reach 2K.

I don't know maybe it's all in my head, but I can feel a vast improvement.

 

that is one of the most ignorant posts i've seen in awhile.

 

I wouldnt necesarily call it an ignorant comment....If a car needed premium gas it would say so in the manual....I have read the manual many of times...I dont see anywhere in there saying "USE PREMUIM GAS ONLY"....

My cousin ownes an acura TL (2000) IT needs premium....My friend owned a cadillac....it needed premium....All those cars specifically stated that they needed premium, if you put anything besides 91 octane (cali here ) you could hear the difference in the engine (SINCE IT WAS 10 to 1 compression), It would make slight nocking noize while accelerating and it would SLIGHTLY reduce your HS almost unnoticably...

From what many people have told me... octane Doesnt give you any extra Power(unless your car Sez IT NEEDS IT)... its just there to prevent it from missfiring in a HIGH COMPRESSION ENGINE...(Incase you didnt know, if you pressurize gasoline enough it WILL ignite on its own without a spark...kinda like a deisel engine)

As for what 4DRSpeed said....i dunno....ill have to try it and see if it makes a difference...but LOGICALLY speaking it SHOULD NOT make any bit of a difference....

Im not trying to tell you all your wrong im just trying to tell you what i have been told....maybe its wrong info but untill i see a gain (will test it out today ) i will keep believing that it gives no gain...

 

You've been told wrong. why don't you do some research and find out what the compression ratio is on a vq, then come back and we'll talk about your "magic" 10 to 1 ratio. as for the owners manual not saying to use premium.... why don't you check out page 10-3 and tell me what it says. on second thought i'll just post it like this so everyone can see:


Now I know our measly little vq isn't as cool as the northstar or base TL engine and i'm sure when you come back with your newfound expertise on compression ratios you'll be able to tell me why the vq is not considered a high compression engine by you.

 

Well thank you!!! i never saw that hehe...

Again im simply learning...... fealing stupid for a few minutes helps the learning process sometimes lol

I just posted b4 i did research (mistake )

As for extra power i will try it out today and if it creates a noticable increase i will come back and thank you all for clarifying....

After all i dont think all of us signed up on this forum to tell people how it is....But mainly to learn about Maximas....

"I THEREFORE HAVE LEARNED"

thanks 2...er,....whats his name again....slizan99

ur input is very much appreciated

 

the search feature is your friend.

 

did you find out the compression ratio on a vq yet?

 

I did....

https://maxima.org/shoptalk/sub_read...95/index.shtml

lol i didnt know... 95 max VQ30DE DOHC V6 is 10.1 ratio....

Man i love this website lol....honestly when i get more money i WILL donate!!!

 

Will puting 87 octane in a max for a long time damage the engine in the long run? or will it just decrease performance while you have 87 octane in it?

 

XeroX,
So now that we know we NEED it, we're deciding if its WORTH it?
You answered this yourself earlier regarding the TL and Caddy:
"It would make slight nocking noize while accelerating ..."

Same effect on the Max, and knocking is harmful long term, yes of course.

93 octane in my Max (can't get 91 here)

 

Performance is minimal, barely noticeable. PAying for premium gas for a VQ30DE engine is a good investment to prevent possible future costly engine maintenance. Knocking is bad for the valves and connecting rods.

 

If you look inside the fuel filler door, it states something like "use premium fuel for best performance" in a sticker on the door itself

 

premimum is required for best performance ONLY. u can put 87 too but later on it might get u

 

Yeah... I am stil trying to get it straight but...variable induction....doesnt that allow 87 octane to be ran without a knocking noise...cause its @ 103 thousand....i have been runing it on 87 FOREVER and i never hear a knocking noise...thats why i posted .....

Anywayz i think it just decreases the performance slightly.... i filled up my tank tonight with 91 and it ran very smooth, dropped about 400 rpms while going 50 (b4 it would run @ 2000, now its at 1600) Just like one of you said

But as for the knocking, i think the manual would say "slight knocking" rather than just decrease in performance....

 

running 91 but try to boost it to around 95 when running at the track

 

93 when I can find it but usually 91 b/c it is easier to come by

 

How do you 'boost' your 91 to 95?

 

You can Boost your octane level by simply going into an auto parts store or maybe a gas station if they have it, and buying "Octane booster" If you have a Cosco near you, you can get it there in BULK (put a few cap fulls into your tank when you fill up)

If gas is really expensive were you live (like me) it is sometimes cheaper to buy a BIG bottle of octane booster (from cosco ) and only fill up with regular octane (87) .... the only draw back is that you need to do it every time you fill up, BUT IF YOU ARE REAL FRUGAL....er....the extra 40 cents you saved will make ya happy lol

For brands of octane boosters....other than generic ones like COSCO's ....STP makes a good one but they only come in single servings (most likely what you will find @ a gas station here in sacramento )

Anyone know of others? ...

 

I was hoping you wouldn't say that.

Sorry to break it to you but those little bottles are a waste of money. There is no proof on paper (in the real world) that they do anything such as boosting Octane.

 

wait....why is this thread still going on?

 

?
Have you tried it?

I havent with the Max yet but i have heard of MANY people doing it...

i will test it out and get back to you...i can put it on paper (whether it werkz or not lol )



ITS OK CAUSE IM A !!!!!!!

 

have i tried what?...

 

I was replying to THAT post im sorry the for mistake...