What's the compression ratio on a R/T Charger? Oh that's right, 9.6

What's the compression ratio on a G35? 10.3

To add more theoretical bull****, the G should be more sensitive to premium vs. regular than the R/T...

 

Living in this beautiful state of Ca. even though we're blown/burnt all we have
available to us is 91 octane petrol with a few other additives to make our
tailpipes smell better HAHA Infiniti suggests that we use premium fuel
in our cars, why would you "cheap out" and use anything else? Especially if
you have a few under hood mods that imporve the efficiency of Nissan's motor.
After spending all that extra money to make your G35 run better don't use
anything but the best fuel available!

 

LOL! That's just ****ing brilliant!

It makes absolutely no difference how much your car costs. All that really matters is the compression ratio of the engine. But hey, run 87 in your $40,000 ride if you like. No skin off my teeth....

 

The real question is, "is there a difference between the prices"... Do the math. Switching from 91 to 87 wont save you more then $2 per fill up.

If you can't afford to spend the extra $2 per fill up, you seriously need to reconsider your purchase.

 

i put reg since the day i bought the car. no probs whatsoever.

and i get 17.5 mpg in the city with a heavy foot.im addicted to the sound of my injen!

 

yup, your car will ping and you will lose performance and possibly fail an emissions test if you dont run 91 or higher in the g. shell v-power since day one and the car loves it! 87 is cool for your soccer van but not in a high performance engine like ours.

 

so pretty much it is recommended to use premium but others use regular saying no problems, what and when would you notice engine malfunctions because of the wrong gas usage? how long do u have till u notice your engine is f***ed because of regular gas?

 

oh the ignorance!

 

You won't hurt your engine because it has a knock sensor that retards the timing, but at the cost of HP and mileage. Essentially you'll have a detuned engine that is slower than all the other g35's out there. You decrease in mileage will also just about offset the very small savings you made at the pump by using regular. Good job!

 

hhahahaaha youre the ignorant one.

the compression in our engines dont require premium.

and just so you know a little insider tip, when the tankers deliver the gas to the gas stations and they ordered too much mid grade or premium, they dump it into the reg.

 

It is. 87 Octane gas can handle a compression ratio of 9.3:1 with out premature detonation. Any higher than that and you should use higher octane fuel.

This isn't a conspiracy theory by the gas companies, its basic physics and chemistry.

Running 87 in the G might not cause immediate damage to your engine, but eventually, it will.

It's not just about knocking and pinging, it's about efficiency - if you're fuel/air mixture is detonating spontaneously (without the aid of the spark plug) your engine isn't running efficiently. You lose compression before the pistons reach TDC/maximum compression and before the spark plug ignites the fuel/air mixture. The result is unburned fuel inside the combustion chamber which in turn sticks to your vavles, which in turn causes your vavles to seat improperly, which in turn causes a loss of compression, which in turn causes a loss of horse power, which in hind site would make it pretty stupid to run cheap gas in your beautiful G.

 

Not sure where you got the "they dump it into the reg" thing but I note two things:

1) If that's your justification that reg is just as good as prem, then you're contradicting yourself in regards to the importance if prem grade in the G.
2) I'm no gas station expert but considering the miniscule markup gas stations have on gas sales, I don't see them paying for premium and then selling it at mid or reg fuel prices. They would be taking a loss

 

Its Not A Buick! Good Gas Or Go Home.

 

Why not? As long as it's not the other way around. If some geek in a white coat from some state sponsored lab stops by and tests the fuel and the octane/heptane mixture is higher than required, nobody gets in trouble. If it's lower than advertised, someone's gettin' a hefty fine.

And the compression ratio in the G does require premium fuel

 

thats not true, i work at a gas station and they dont do that. they already know what you need, and you get what you get. you only buy one ice cream from the ice cream man, he doesnt just dump the rest of the box in your lap cuz he's ''already there''.