can you burn regular unleaded gasoline in th G37?

I highly doubt it, I made that mistake in my Nissan Maxima and it spark knocked something terrible till I could get premium in it. On a car that nice, don't risk running regular.

if the car says premium fuel only then run premium fuel. if you cant afford the gas the car needs then you cant afford the car.

if u want to knock your engine, go ahead.... stick to unleaded....

Infinity recommends high octane fuels but you can use "Regular". If you plan to race i would use high octane...

I just purchased a 2011 G37, and the dealer told me to use regular gas unless I planned on red lining the engine and testing its performance. I don't drive like a race car driver, so I think I'll use regular.

Modern cars have knock sensors. Using regular in a high compression engine can cause knock. The sensors should detect it and automatically compensate by retarding the spark timing. Thus, car should run fine with slightly reduced performance and mileage

I use 93 and i red line all the time daily driving the cars to fun not to rearwheel drive G37 is a great car

dont do it , the engine is a 11:1 normal cars are 9:1 this means pre ignition is gonna be an issue

The engine in this car operates at an 11:1 compression ratio normal cars run on a 9:1 compression ratio , despite dual nock sensors the pre ignition will still cause problems , the nock sensors may not be able to adjust the advance enough to compensate . its like running gas in a diesel engine , a diesel runs on a 19:1 compression ratio

Done it for months with no knock, no nothing. It's fine.

I use regular unleaded chevron gas. No problems yet. I also use Lucas octane booster as much as allowed. Maybe that helps?

I have a Infinity Q35 and am using premium but question the long term affect on the seals and gasket. Should I consider using 100% gas?

I only run 93 as well as a bottle of royal purple octane boost in every tank

You guys running cans of octane booster in your tanks should think about the manganese deposits left on the pistons and spark plugs. Most of these supplemental boosters contain a compound called methylcyclopentadienyl manganese tricarbonyl(MMT) that is the agent that raises the octane level. I would be wary of its use in a late model car engine because of the possibility of poisoning the catalytic converter over time. I have a Nissan 370Z and Nissan explicitly recommends NOT using this substance. I use a blend of premium(91 octane) pump gas and some Sunoco SS100(100 octane) to get a blended average of 93, which my engine really likes a lot and gives me about 10% better mileage over the 91. You could use an alternative in the form of toluene as an octane additive, but research that carefully.

2 full years of uing regular in my 2012 M37...and it runs and sounds flawless everywhere, especially on I95 at 75 MPH. So.I am sticking with it and saving 20cents a gallon at least. It adds up fast.

Yeah. Looks like it's safe? I'm using 87 on my g37 coupe because the difference per tank is over 10$. That's over 500$ a year in savings. It adds up and if it doesn't harm the engine and only lowers power then whatever

I have more than 100K miles on regular. No issues. Just change the oil before the recommended period and do water carbon-clean every once in a while to be safe. It's an MPI engine and not GDI. It doesn't need anything other than regular oil change.