370z requires premium fuel?

zfast1 · 01-26-2009, 01:16 PM

That is what I have read in some of the reviews. Is this accurate? Do we have the vehicle manual on the website?

Thanks

G&M Performance · 01-26-2009, 01:29 PM

Premium fuel is needed. 91 octane and above.

Owner's Manual linky....

http://www.the370z.com/images/370zfo...he370Z_com.pdf

Slidefox · 01-26-2009, 02:29 PM

One word... Yes

OMGWTFBBQ · 01-26-2009, 05:06 PM

If Civics (the Civic Si) nowadays require premium fuel, I'd assume the 370z would definitely require it too haha.

Crash · 01-26-2009, 05:26 PM

Anything that is high compression or force induction should always use premium. High compression is about 10:1 and up. I believe the these motors are 11:1.

Robert_Nash · 01-26-2009, 05:49 PM

Absolutely they need premium (as has the 350s and for that matter, most of Nissan's/Infiniti's offerings that use either a 6 or 8 cylinder).

If you use anything other than premium, you will likely see less performance as the CUP backs-down the engine to prevent premature ignition (knock).

Ryan@IP · 01-27-2009, 10:41 AM

Speaking of fuel choice.. see what happens when you use XXX 138 oxygenated blend

XXX Racing Fuel gains 14whp on stock 370Z : Injected Performance Blog

G in ny · 01-27-2009, 01:12 PM

^impressive

Crash · 01-27-2009, 01:29 PM

LOL! That's a good way to empty out the cats too!

tvfreakazoid · 01-30-2009, 03:39 PM

Could you explain what that means "high compressions for cars"? I guess I can look it up but I would rather have your professional opionion.

Quote:

Originally Posted by Crash

Anything that is high compression or force induction should always use premium. High compression is about 10:1 and up. I believe the these motors are 11:1.

Crash · 01-30-2009, 04:14 PM

LOL! I'm not a professional!

I do porn, not cars. (FYI)

Compression is the amount of pressure the combustion chambers are under.

The octane level changes the speed and cleanliness of the detonation. Pre-detonation is common on higher compression engine because the fuel will ignite easier. So higher octanes are required to guarantee a specific time for detonation AFTER the piston has reached its apex.

Read this: Engine knocking - Wikipedia, the free encyclopedia <-- That will explain the pre-detonation and let you know why higher octanes are more important on cars with higher compressions.

tvfreakazoid · 02-01-2009, 03:45 PM

I see. Thank you. Now this may sound a little dumb, will the 370 require something special or a converter of some sort if you want to put a higher octane on your car? A local gas stations sells 100 octane. Also what if you put c17 or something like that.

Quote:

Originally Posted by Crash

LOL! I'm not a professional!

I do porn, not cars. (FYI)

Compression is the amount of pressure the combustion chambers are under.

The octane level changes the speed and cleanliness of the detonation. Pre-detonation is common on higher compression engine because the fuel will ignite easier. So higher octanes are required to guarantee a specific time for detonation AFTER the piston has reached its apex.

Read this: Engine knocking - Wikipedia, the free encyclopedia <-- That will explain the pre-detonation and let you know why higher octanes are more important on cars with higher compressions.

Crash · 02-01-2009, 04:47 PM

91, 92, or 93 octane will be just fine. Don't worry about those higher octanes unless you plan go use forced induction.

tvfreakazoid · 02-02-2009, 05:07 AM

I was just wondering. I think the 100 octane is like 6.99 a gallon. Way to rich for my blood. But if you put 100 octane wouldn't it increase the HP a decent amount?

Quote:

Originally Posted by Crash

91, 92, or 93 octane will be just fine. Don't worry about those higher octanes unless you plan go use forced induction.

Crash · 02-02-2009, 06:13 PM

Nope. It just runs with fewer knocks.

100 octane is really meant for MUCH higher compression engines or forced induction.

01-26-2009, 01:16 PM	#1 (permalink)
zfast1 Base Member Join Date: Dec 2008 Location: TORONTO Posts: 10 Drives: 00 Infiniti G20 Rep Power: 17	370z requires premium fuel? That is what I have read in some of the reviews. Is this accurate? Do we have the vehicle manual on the website? Thanks

01-26-2009, 02:29 PM	#3 (permalink)
Slidefox Previous Moderator Join Date: Nov 2008 Location: Arizona Posts: 1,534 Drives: A Pony Rep Power: 214	One word... Yes __________________ Forum Rules: Click Here Before Posting Click Here to Become a Premium Member Go Turbo or Go Home!!//Cowboys 2012 Superbowl Champs// Suns 2012 NBA Champions

01-26-2009, 05:26 PM	#5 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	Anything that is high compression or force induction should always use premium. High compression is about 10:1 and up. I believe the these motors are 11:1. __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

01-26-2009, 05:49 PM	#6 (permalink)
Robert_Nash Track Member Join Date: Jan 2009 Location: Middle TN/Savannah GA Posts: 762 Drives: '14 Q60IPL/'14Armada Rep Power: 17	Absolutely they need premium (as has the 350s and for that matter, most of Nissan's/Infiniti's offerings that use either a 6 or 8 cylinder). If you use anything other than premium, you will likely see less performance as the CUP backs-down the engine to prevent premature ignition (knock). __________________ Robert -My Basset Hound Is Smarter Than Your Honor Student and Barack Obama -

01-27-2009, 10:41 AM	#7 (permalink)
Ryan@IP Base Member Join Date: Dec 2008 Location: Lexington, KY Posts: 187 Drives: 04 BMW 330i ZHP Rep Power: 283	Speaking of fuel choice.. see what happens when you use XXX 138 oxygenated blend XXX Racing Fuel gains 14whp on stock 370Z : Injected Performance Blog __________________ Ryan at Injected Performance Phone: (888) 465-7373

01-26-2009, 01:29 PM	#2 (permalink)
G&M Performance Enthusiast Member Join Date: Jan 2009 Location: Texas Posts: 425 Drives: LS3 Genesis Coupe Rep Power: 227	Premium fuel is needed. 91 octane and above. Owner's Manual linky.... http://www.the370z.com/images/370zfo...he370Z_com.pdf

01-26-2009, 05:06 PM	#4 (permalink)
OMGWTFBBQ A True Z Fanatic Join Date: Jan 2009 Location: the OC Posts: 1,886 Drives: 08 SGM IS350 Rep Power: 4549	If Civics (the Civic Si) nowadays require premium fuel, I'd assume the 370z would definitely require it too haha.

01-27-2009, 01:12 PM	#8 (permalink)
G in ny Enthusiast Member Join Date: Nov 2008 Location: new york Posts: 396 Drives: 2006 g35 coupe Rep Power: 228	^impressive

01-27-2009, 01:29 PM	#9 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	LOL! That's a good way to empty out the cats too! __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

01-30-2009, 04:14 PM	#11 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	LOL! I'm not a professional! I do porn, not cars. (FYI) Compression is the amount of pressure the combustion chambers are under. The octane level changes the speed and cleanliness of the detonation. Pre-detonation is common on higher compression engine because the fuel will ignite easier. So higher octanes are required to guarantee a specific time for detonation AFTER the piston has reached its apex. Read this: Engine knocking - Wikipedia, the free encyclopedia <-- That will explain the pre-detonation and let you know why higher octanes are more important on cars with higher compressions. __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

02-01-2009, 04:47 PM	#13 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	91, 92, or 93 octane will be just fine. Don't worry about those higher octanes unless you plan go use forced induction. __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

02-02-2009, 06:13 PM	#15 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	Nope. It just runs with fewer knocks. 100 octane is really meant for MUCH higher compression engines or forced induction. __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

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