What do you think is the best gas company for the sedan? How many miles u get with it?

 

Ummm... I use Shell V-power and i get like 15mpg on my auto, mainly because I am an insane gas-aholic! And so is my G!...I mean, my baby gulps gas like a slurpee! Hehe

 

Bagged her out with 93 at Sam's Club. Averaged 21.5 MPG with a 30/70 highway/city split.

 

I only use Shell or Chevron

 

Here ya go..........https://g35driver.com/forums/g35-sedan-v35-2003-06/29773-what-brand-gas-do-you-use.html

 

I've always used EXXON, my first tank of gas netted me 17.2 MPG, which included 42miles highway driving and the rest stop and go. I am on my second tank right now so I'll see if it's the same. And of course only premium for my baby.

 

Personally, I prefer Union 76 or Chevron. I've heard from a couple of different smog service guys that Chevron seems to burn the cleanest [may be a good tip for those of us that have cars on the borderline of passing a smog test]. For me, with mixed local and freeway driving, I always get between 20 - 22 MPG with my 6MT sedan.

 

You guys may cringe when I say this... but I use whatever is cheapest. I'll tell you why: The octane is an 'anti-knock' rating and nothing more. All gas is regulated by the federal government to contain a certain amount of 'cleaners' in it... now the octane only matters according to what your specific car is designed for, based on the compression ratio.

The coupe calls for at least 91, the sedan calls for at least 87, but recommends 91. If it'll work with 87 and you're putting 91... you're wasting your money.

If you think i'm crazy... do a little research on Octane and how it pertains to your vehicle.

 

I thought the same thing too.

However, there is still a difference. I used cheap Arco before and it for some reason you are prone to smelling the exhaust than when I used Chevron.
With Chevron, I get better gas mileage, no weird smell and take it to the mechanic the parts are clean.

I am now an avid Chevron user. Have a card with Chevron and will not change to anything else.

 

I only use BP Amoco 93 in my Coupe. Average 19-20 mpg combined city/highway

 

Does the sedan have a "Premium unleaded only" decal on the inside of the fuel door?

I would never buy a used Nissan/Infiniti that has a VQ engine which was not fed premium fuel by the previous owner.

 

Using lower grade gas will cause the ECU to retard timing to counteract the knock effect, lowering performance. If the ECU doesn't retard timing, it'll eat the crank, cam, and con rods away until something blows up, as knocking is essentially the noise you hear when the engine reacts to gas exploding before the spark.

Seems like a good reason to avoid cars that weren't using premium to me...... but can you tell? Not really...