Gas: regular or premium?

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telcoman
Posts: 5763
Joined: Sat Jul 08, 2006 11:30 am
Car: Tesla 2022 Model Y, 2016 Q70 Bye 2012 G37S 6 MT w Nav 94444 mi bye 2006 Infiniti G35 Sedan 6 MT @171796 mi.
Location: Central NJ

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I traded in my 06 G35 two years ago with 171796 miles. It ran like new when I traded it in.
Almost all of those miles were were on 87 octane.
I did a one month test of 91 octane and a one month test of 93 octane in April and May 2009.
I did not notice any increase in performance but did notice a slight reduction in MPG
I am almost at 47k on my current 2012 G37S so having driven an Infiniti for close to 219k miles and my current 2012 G37S has never seen a drop of anything other than 87 octane I can tell you that you need not worry what grade of gasoline a previous owner used.
There is no need to waste money on fuel treatment.
I am also on the road in the early morning hours earlier than you and I track my MPG very carefully with detailed records over almost nine years.
I calculate my MPG by miles traveled/ gallons used to fill up.

Here are the vehicle computer results of my round trip from NJ to Florida in June

Image

You can see the results of the four fill ups on the way down, the not so great MPG wile the wife drove on many short trips while in Florida and the four fill ups on the return to NJ. All on 87 octane filling up at large truck stops such as Petro,TA,Raceway, and Hess. I did use Shell on one fill up because they had the cheapest price among several stations.
The last fill up on the return in Ashland, Va to NJ gave me my best MPG of the trip at 28.49 MPG
Stop worrying about what grade of gasoline to use and enjoy your G.
If you enjoy pissing money away use premium.
If you are cheap like me use regular 87. It will not hurt your G

Cheers

Telcoman


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Mudgen
Posts: 595
Joined: Mon Feb 07, 2011 7:28 pm
Car: 2011 Graphite Shadow G37x sedan (Jezebel), 2011 Dark Gray Metallic Subaru WRX sedan (Darth), 2006 F150 XLT 4x4 5.4L 4OT (Big Brown)
Location: Center of the Universe

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telcoman wrote: The last fill up on the return in Ashland, Va to NJ gave me my best MPG of the trip at 28.49 MPG
You're simpler than a single wire ground return. I told you that if you were stopping in Ashland to let me know. :poke:

Seriously, next time through, let me know. I'll buy lunch.

User avatar
telcoman
Posts: 5763
Joined: Sat Jul 08, 2006 11:30 am
Car: Tesla 2022 Model Y, 2016 Q70 Bye 2012 G37S 6 MT w Nav 94444 mi bye 2006 Infiniti G35 Sedan 6 MT @171796 mi.
Location: Central NJ

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Are you near I95?

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Mudgen
Posts: 595
Joined: Mon Feb 07, 2011 7:28 pm
Car: 2011 Graphite Shadow G37x sedan (Jezebel), 2011 Dark Gray Metallic Subaru WRX sedan (Darth), 2006 F150 XLT 4x4 5.4L 4OT (Big Brown)
Location: Center of the Universe

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telcoman wrote:Are you near I95?
I'm in Country Club Hills just off Rt. 54 about 4 miles west of Ashland. Right at six miles from my driveway to the southbound I95 ramp in Ashland.

User avatar
telcoman
Posts: 5763
Joined: Sat Jul 08, 2006 11:30 am
Car: Tesla 2022 Model Y, 2016 Q70 Bye 2012 G37S 6 MT w Nav 94444 mi bye 2006 Infiniti G35 Sedan 6 MT @171796 mi.
Location: Central NJ

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How is your Bar B Que and Southern Fried Chicken? :)

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Mudgen
Posts: 595
Joined: Mon Feb 07, 2011 7:28 pm
Car: 2011 Graphite Shadow G37x sedan (Jezebel), 2011 Dark Gray Metallic Subaru WRX sedan (Darth), 2006 F150 XLT 4x4 5.4L 4OT (Big Brown)
Location: Center of the Universe

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The signature restaurant for both, The Smokey Pig, is gone. For BBQ, I like The Virginia Barbecue Company, a little hole-in-the-wall place on the right in the first block after you cross US 1 on Rt 54. They serve both Virginia style (tomato/molasses based sauce) and NC style. There's no non-chain family style fried chicken in Ashland, but the chef at my country club does a great job when he serves it.

Holler sometime when you're going to be passing by. I'll pm you a phone number and meet you for a BBQ on me.

Streaker
Posts: 3
Joined: Tue Jun 21, 2011 4:02 pm
Car: 2003 Infinity G35

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My son moved to Belgium several years ago and left the care and maintenance of his 2003 G35 sedan to me. He always used premium and was surprised when I told him I had been using regular without any problems. When he comes over to america once a year with his wife and kids they use it instead of renting a car.


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