I just brought a 2008 g35xs and i was wondering if putting in the cheapest gas will affect the car in anyway negative? I know many dealers will tell you u have to put the best gas in the car, but how much truth is there in this? thanks for any help.

 

In the owners manual it says to use premium. I would use premium. Using the middle stuff wont be so bad but there is no way in hell i would ever out regular in my car.

If i have to fill up on gas and the price is 4.38/gallon for premium and 4.29/gallon for mid grade then the difference in money saved on 18 gallon fill up is 1.62

I think you can bite 1.62 difference to get the good stuff.

 

I guess you have a point I was just curious to see what people think. Thanks for the info.

 

couple threads dwn, same forum...

https://g35driver.com/forums/lounge-off-topic/231379-would-you-put-89-if.html