☰
GET A QUOTE

Q: Car stuttering when starting and low gas mileage

asked by on February 10, 2018

I have a 2013 g37 with 45k miles and when I start it it stutters a little bit then stops I’m wondering what that may be ? Also my mileage per gallon has gone way down since I bought the car 2 months ago, it was about 26 per mile at first now it’s about 17 , I don’t drive crazy or anything Andy I always go to shell or chevron and get 91 gas .... also if I want to do a oil change myself what is the top of the line oil to put in the vehicle ? Thanks so much for the help

My car has 45906 miles.
My car has an automatic transmission.

Save Big on Auto Repairs Get a Quote

Hi Ryan. Thanks for contacting us today. Sputtering and poor fuel economy are commonly caused by similar component failures such as a damaged mass air flow sensor, clogged fuel injectors or even faulty O2 sensors. If any of those items have not been replaced as recommended by Infiniti, then you should have them replaced. In regards to the engine oil, the best product to use is one that is recommended and listed in your owner manual. The brand that we recommend is Castrol GTX.

Infiniti
2013
G37
V6-3.7L
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Fixing a fuel leak on an O8 Dodge Caravan
First thing you want to do is you want to drive it until the gas tank is almost empty because the gas tank weighs a lot less than it does full. When it's full, it's a royal job. But, when...
Read more
The car makes noises while making a turn to the left
Depends on where the noise is coming from on your Mercedes C320. If it is from the front end, then it is likely a worn suspension component such as a sway bar link (https://www.yourmechanic.com/services/stabilizer-bar-links-replacement) or a steering component like a...
Read more
Noise when i turn heater on for while to defrost or vents. 2003 Chevy Impala
Hi there, thanks for writing in about your 2003 Chevrolet Impala. The noise you may be hearing is the blend door actuator clicking until the door gets into the position it needs to be in. When these actuators go bad...
Read more
tachometer.speedometer temp gauge not working
If cluster fuses are good, check/clean the battery ground, bot the terminal and where the ground cable connects to the chassis. If that doesn't help, then you have a bad instrument cluster and it will have to be replaced.
Read more
missing catalytic converter.
A catalytic converter is a major component to your car's exhaust system. If this is truly missing, this would mean that someone would have had to have physically removed it which involves a fair amount of work as well as...
Read more
engine light comes on after oil change service
Hi there: On modern vehicles, there are two different types of "warning lights"; routine service lights and trouble code warning lights. In most cases, when you have a routine service light that illuminates, it's set to do so at certain...
Read more
Struggles to stay running when I start it and only last about 15 seconds
There are many possible malfunctions that can cause a engine to stall (https://www.yourmechanic.com/services/car-is-stalling-inspection). As long as the engine is in good mechanical condition, it comes down to the engine getting the correct air/fuel supply, a sufficient ignition to fire the...
Read more
Exhaust manifold
You may have broken bolts or studs in the engine head that would cause an exhaust leak. You may need to remove the manifold and extract the broken off bolts from the cylinder head by drilling them out and using...
Read more
Transmission swaps for ford 460
The T56 is the better of the two transmissions to mate with the 460 motor.
Read more

Related articles

A Buyer’s Guide to the 2013 Acura ILX Hybrid
Acura Acura returns from a spate of years devoted to the higher-end luxury market, and they do so in style with a car that practically invents its own segment. The ILX Hybrid is the half electric portion of the brand...
Read more
The Best Used Cars to Buy If You're a Doctor Who Makes House Calls
If If you are a doctor who makes house calls, reliability is likely to be at the forefront of your mind when it comes to choosing a used car. You also expect a certain level of comfort. We have evaluated...
Read more
The 5 Safest Used Cars You Can Buy For Under $20,000
The Subaru Legacy, Honda Accord, Ford Fusion, Chevy Volt, and the Volvo XC60 are five of the overall safest used cars you can buy for under $20,000.
Read more

Browse other content

Maintenance
Estimates
Cars
Services