Gas Question

FLA37040th · 04-13-2012, 09:37 AM

Well I know we need to run premium but here is my question. Well my first choice is Shell 93 Octane, but Sunoco is selling 90 Octane without ethanol, would you give up the Octane to run Sunoco gas without ethanol even though it's only 90? Or would you by the Shell 93 because of the higher Octane?

TheGreatOne · 04-13-2012, 10:10 AM

I would buy the 93 personally.

Hmm, 90, haven't seen that much. I had just crossed the border and saw 93 which I gladly filled up on

scsuh · 04-13-2012, 10:48 AM

the fuel injectors in my 300zx would love that 90 octane w/o ethanol... they need some of that in california.

FLA37040th · 04-13-2012, 11:08 AM

Quote:

Originally Posted by scsuh

the fuel injectors in my 300zx would love that 90 octane w/o ethanol... they need some of that in california.

For real? Even though the Shell is 93? The 90 will be good for the Z?

fncrow · 04-13-2012, 11:15 AM

I put 90 in my car this past week. Its running fine.

gy954 · 04-13-2012, 02:06 PM

What I read somewhere is that the electronics that run the engine will compensate for lower-octane gas, so you don't get pinging...BUT over time low-octane gas does damage the engine.

In Kalifornia the best we can get is 91 octane, and it's with special formulation at that, so it pretty much sux. Filling up in Oregon once (on a trip) made a huge difference not only in performance, but better MPG too.

kenchan · 04-13-2012, 02:12 PM

yah, the ecu does compensate and you dont get the full 2horses beyond 330hp... so i would put that extra 3octane in there to get your run for the money.

you need all 332horses in rush hr traffic for sure.

just use premium gas.

04-13-2012, 09:37 AM	#1 (permalink)
FLA37040th Base Member Join Date: Apr 2012 Location: Florida Posts: 7 Drives: 2012 Edge Rep Power: 13	Gas Question Well I know we need to run premium but here is my question. Well my first choice is Shell 93 Octane, but Sunoco is selling 90 Octane without ethanol, would you give up the Octane to run Sunoco gas without ethanol even though it's only 90? Or would you by the Shell 93 because of the higher Octane?

04-13-2012, 10:10 AM	#2 (permalink)
TheGreatOne A True Z Fanatic Join Date: Jan 2011 Location: Montreal, Canada Age: 47 Posts: 1,980 Drives: E60 BMW M5 Rep Power: 21	I would buy the 93 personally. Hmm, 90, haven't seen that much. I had just crossed the border and saw 93 which I gladly filled up on __________________ 2017 SUBARU STI 2008 E60 M5 - SOLD 2010 40th Anniversary 370Z - SOLD (and missing her)

04-13-2012, 02:06 PM	#6 (permalink)
gy954 Base Member Join Date: Mar 2012 Location: Sonoma County, CA Posts: 163 Drives: 2011 370Z Rep Power: 181	Low Octane What I read somewhere is that the electronics that run the engine will compensate for lower-octane gas, so you don't get pinging...BUT over time low-octane gas does damage the engine. In Kalifornia the best we can get is 91 octane, and it's with special formulation at that, so it pretty much sux. Filling up in Oregon once (on a trip) made a huge difference not only in performance, but better MPG too.

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04-13-2012, 10:48 AM	#3 (permalink)
scsuh Base Member Join Date: Jan 2012 Location: Minneapolis Posts: 16 Drives: 07 gti, 92 300zxtt Rep Power: 13	the fuel injectors in my 300zx would love that 90 octane w/o ethanol... they need some of that in california.

04-13-2012, 11:15 AM	#5 (permalink)
fncrow Base Member Join Date: Jul 2009 Location: Miami Posts: 92 Drives: 370Z Rep Power: 16	I put 90 in my car this past week. Its running fine.

04-13-2012, 02:12 PM	#7 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	yah, the ecu does compensate and you dont get the full 2horses beyond 330hp... so i would put that extra 3octane in there to get your run for the money. you need all 332horses in rush hr traffic for sure. just use premium gas.