So I'm having a little issue
My G is getting around 9.45 miles to the gallon on 92 octane
so far I did my research and replaced the air filter. I plan to replace the spark plugs ASAP
How are E3 spark plugs?
Should I replace anything else?

 

I used JNK plugs when I did them. It probably won't alter your mpg figures but it could. Check the tire pressure and make sure they're all up to specs.
The cold weather has really taken a toll on me, too. On my last tank I got 16.7mpg on 91. I know that's not as bad as yours but in the early fall I was getting 20.5.

 

Air filter, low tire pressure, and bad spark plugs are the easy fixes. Besides those three it gets alot more technical with ignition timing and fuel injection problems. Also you could start driving like a grandma

 

Lol I do drive like a grandma, but yeah if the spark plugs don't fix it I'm taking it into Infiniti

 

The place I bought it from gave me a 6 month powertrain warrenty so I might see if this issue is covered

 

I don't think replacing ya plugs gonna fix that problem..It might, but I don't think so. driver slower

 

Lol I really don't drive fast especially not with this jersey traffic

 

How many miles do you have on your car? Is the Check Engine light on?

 

Bad spark plugs decrease engine combustion efficiency, which negatively impacts vehicle gas mileage and power.

 

No CEL, I'm at like 71,200 and I bought it at 70,910

 

BTW, I also reset my ECU today

 

Clean your MAF sensor with some MAF Sensor Cleaner spray... that can make a big difference if the one in there now is all screwed up. Also make sure that none of your brake calipers are stuck. A stuck caliper will add a ton of resistance to the car as you drive and sap your fuel economy noticeably.

Aside from that, it might not be a bad idea to check your wheel bearings to make sure they're OK and see that each wheel spins freely when lifted off the ground.

 

Ok I'll try that and see what happens thanks!

 

How many miles are you getting to a tank?

 

~200