Petroleum Choices

LennyK

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

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CRiZO

I put gas in my car

BettyZ

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

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'14 MB Nismo | Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs.
Betty Mods

vtec to vvel

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).

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LennyK

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??

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The Z Philes

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

MZ DAIZY

vtec to vvel

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

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bunk

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.

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LennyK

NISSAN recommends 91 octane (minimum) -

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

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BettyZ

Same here lol

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'14 MB Nismo | Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs.
Betty Mods

Ventruck

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.

CRiZO

gas

Nixin

I am in Toronto Canada, I only use Shell.

Zyonara91

+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.