Petroleum Choices
 

What gasoline choices are you making?

To begin with - Nissan recommends 91 octane
My area has mostly "secondary" suppliers like Sheetz, Wawa, Turkey Hill, ect
Finding first tier gas is problematic like Exxon, Shell, BP, Sunoco, ect

My question is I am afraid that "Premium 91" is stale or contaminated at these stations since most people buy the Cheapest gas possible & the good stuff sits in the ground forever.

Does everyone buy 91 octane (with ethanol 10% - 15%)?
Does anyone run 89 octane - without problems?
Does anyone run "Ethanol Free" gas - without problems?

Mine is Not a daily driver and some fill ups last a long time if the weather sucks.
It IS Spring / Summer and I hope to be driving more often...

Lets Hear From You About Your Gas Choices - PLEASE :bowrofl:

I put gas in my car

Seb @ Specialty Z says he's seen performance gains of up to 10% with Shell 93 vs. the other brands.

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I only use Chevron, Shell, or Exxon (in this order if one is not available). Gas is gas, but different companies add their own additives to the gas and is what differs amongst the brands.

I only drive my car twice a week (weekend car).

I thought that premium meant 93, so that's what I use. I'm not fussy about the brand.

:iagree:

Not necessarily. Some companies have 90 as their highest octane rating for their premium. And the additives do make a difference IMO.

Yeah, seb recommended shell premium. 93 octane is rare in socal. He gave me a tune for shell 91. And another tune for other than shell 91.

NISSAN recommends 91 octane (minimum) - :driving:

In the U.S., unleaded gasoline typically has octane ratings of 87 (regular), 88–90 (midgrade), and 91–94 (premium).

Post Up What You (Buy) Use In Your Z

gas

EXACTLY - me too (weekend roadster)
Seems like most of the "Brand" stations are being converted to "mini-mart" gas stations in my area and changing from "Shell, Exxon, BP, ect) to generic brands
Sheetz, Wawa, Turkey Hill and they buy anyones gas which is unable to be delivered or extra when the tanks are filled.

Only branded stations in my immediate area are Sunoco, and 3 years ago you could not find a Sunoco station. Collusion or competition agreements??

I am in Toronto Canada, I only use Shell.

Same here lol

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Also it depends on altitude. For a non-tuned Z 89/90 is okay but not preferable if you're in say, the Rockies.

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I like Shell for my vehicles.
Only 91 octane at pumps here.
I have the Z tuned on 96.
I keep a drum at my house.

Shell Premium, zero ethanol (in Canada)

I know all gas isn't equal across brands, but I didn't realize it was enough that he'd have a separate tune for Shell 91.

Nonetheless, Shell is a bit of a trip for me. Still interesting, though.

Wish I Could Buy This...:bowrofl:

Highest rating for Shell Nitro V in Canada is 91 (ethanol free in my area). Highest rated gas is Petro Canada at 94, but with 10% ethanol. I use both during the season and Shell prior to winter storage due to it having no ethanol.


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Here in MA, we have Pride gas which is the cheapest in the State, actually next to the cheapest as which is Cumberland farms and it's 93 octanes and I see numerous Mustangs, Vettes, etc high end vehicles gassing up there so I think the gas moves quite well.
Funny how we worry about what kind of gas we use but we have the worst "diets" for ourselves, all we have to look is around us and see it...:rolleyes::driving:

For street duty I only use Chevron or Texaco 93 octane I have done several engine tear downs and found clean looking engines with not a lot of carbon build up the additive (Techron) Chevron and Texaco gasoline’s use makes their gasoline a excellent cleaning gasoline. For track duty I use VP Racing Fuels Motorsport 100 (MS100) or 76 gasoline 100 octane both were found to be excellent fuels to use at the track. Nissan highly recommends using “top tier” gasoline’s in all Nissan and Infiniti models. Also I would hope everyone is using 91+ octane in their Z since over time engine damage is possible using lower octane fuels. Definitely be selective what fuels you are deciding to run in your Z.

:iagree:

This is what I was talking about earlier about gas being gas, but the additives is what sets brands apart. I will drive a bit further for Chevron gas bc of the Techron additive.

I've definitely had the thought "if I took care of my body like I took care of my car..."

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I've used Sam's Club 85 octane in all my cars since 1995 and never had a problem....





Just kidding guys. :driving:

I'm pretty consistent with Chevron 91 in Northern California. I think an octane any less than 91 would have its drawbacks and wouldn't be worth the $3/tank in savings. Edit: Shell gasoline is my second choice, but I haven't used it yet in the Z.

i try to use costco premium as often as i can, which is 93. they are a top tier gas. and they are the cheapest around.

+1 on this. I ONLY use Shell 91, why? No ethanol. Ultramar and Canadian Tire say they do not use ethanol, but I don't know. Canadian Tire 91 has ethanol, I'm sure of it because I've seen that "may contain 10% ethanol" sticker on the pumps. For Ultramar, their 91 does not have ethanol but their additive package is no where near Shells.

Costco, hit and miss, since they get their gas from Shell and or Esso (Or was it Petro) anyways, it's a hit and miss. This one time I put in Costco gas and damn, the Z was pissed, she wasn't having it. . . Strange because my other car that only takes 91 is hapy with Costco gas. Hm.

Shell is the go to, if I cannot find once when I travel, then I go with Esso 91.

It's always been body mind and soul. When in reality it should be: body, mind soul. . . AND car.

Used to fill the tank with Petro Canada 91, the mother company is Suncor, which is Sunoco in US.

Then heard about the 0-ethanol thing in this forum thus give the Shell 91 a try..

the engine actually runs better plus a tad better gas-mileage.

Thus Shell 91 is the 1st choice, Petro Canada(Sunoco) 91 is the 2nd choice.

I avoid Esso as much as I can cos it runs the worst in my experience..

This Is VERY Interesting To See What You Buy & Why - THANKS

Update: I "Made The Rounds" In My Area Looking For Gas
Passed Up Citgo, Valero, Gulf Cuz Stations Were "CRAPPY"
Filled Up At A Nice New Sunoco Station With Ultra 93 (Ethanol)
My Only Other Choice Is A Truck Stop That Has 91 Ethanol Free

Never Used To Be This Hard To Get GOOD GAS! - . :icon18:

Octane ..how about Ethanol?
 

one question we have not asked ourselves is if the gas we use has any ethanol and how much, I just saw a video on youtube "Scotty Kilmer" and he sure makes sense ...now back to the topic on hand :driving:

Some good info here most of all the gasoline brands you will find in the United States will have up to 10% ethanol mixed into the gasoline it is hard to get around it but, there are some places like certain areas of Canada that have ethanol free gasoline brands you have to shop around. Also all the grocery store brand gasoline stations I have seen use generic additives in their gasoline’s that is why it is slightly cheaper and I have talked to the fuelers before for the grocery store name brand gasoline stations and they confirmed and have even showed me their paper work the gasoline additive they use is a generic additive. In my opinion I would not use any grocery store brand gasoline even in my lawn mower let alone my Z. With gasoline you get what you pay for. For us guys here that go to the track it would be a bad idea to put low quality/cheap fuel in your Z it could damage your engine it is very possible this is why I am selective what gasoline brands I use in any of my vehicles.

I've found the best places to get 91/93 octane no-ethanol gas is around lakes or areas where snowmobiling is common.

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Non-oxy fuel
 

The Minnesota Street Rod Assoc. (MSRA) has a link to locations in Minny & western Wisc selling non-oxy fuel.
http://msra.com/wp-content/uploads/2...on-oxy-May.pdf

Also here is a link they recommend for searching all states and Canada.
https://www.pure-gas.org/

I use BP 91 Premium non-oxy whenever I fill up near home.
I had a bad experience several years ago in my '93 TTZ using ethanol laced fuel that destroyed 3 injectors. So I replaced all 6 and swore I would never use this again in my Z.
I will not make that mistake again in my '14 Nismo, even though the plastics used in the injectors has most likely been improved.

If you don't use it for a really long time and use gas with ethanol in it, you might think about putting in a product like STA-BIL fuel stabilizer.