Is high test really necessary?

onzedge · 12-04-2013, 10:31 AM

Quote:

Originally Posted by Gene's Z

Does anyone use 87 octane fuel on a regular basis? I tried one tank and didn't notice any knocking or any other ill effects but I hesitate do use it regularly. Any thoughts would be appreciated

Do not use 87 octane. Also do not use diesel.

kenchan · 12-04-2013, 10:33 AM

Quote:

Originally Posted by onzedge

Do not use 87 octane. Also do not use diesel.

exsanity · 12-04-2013, 10:36 AM

Quote:

Originally Posted by onzedge

Do not use 87 octane. Also do not use diesel.

My Z runs like a striped ape when I use JP8.

onzedge · 12-04-2013, 10:38 AM

Quote:

Originally Posted by exsanity

My Z runs like a striped ape when I use JP8.

Rusty · 12-04-2013, 10:47 AM

Nobody say this yet. The motor has 11 to 1 compression ratio. That's high for a street motor. Also the combustion chamber design in the head has alot to do with it too.

Red__Zed · 12-04-2013, 10:50 AM

Quote:

Originally Posted by Rusty

Nobody say this yet. The motor has 11 to 1 compression ratio. That's high for a street motor.

Has less to do with it than you might think. The car just isn't designed to accommodate for low octane. There are plenty of 11:1 cars that run 87 just fine.

Isamu · 12-04-2013, 11:17 AM

Quote:

Originally Posted by exsanity

My Z runs like a striped ape when I use JP8.

it can't run on JP8

try jp4

Red__Zed · 12-04-2013, 10:42 AM

Not unless your Z is a 500ZX.

MadChemist · 12-04-2013, 10:55 AM

The 370z just like the 350z are designed with a part called a knock sensor. The whole purpose of this part is to detect knock if it occurs and then will compensate by adding more fuel to the chamber to prevent further knock from happening. Knock can occur due to the fuel not having enough octane. Running 87 octane will decrease your hp but that is all it will do.

Nissan 370Z Knock Sensor - Nissan OEM Engine Mechanical

What does a knock sensor do? - Yahoo Answers

Chuck33079 · 12-04-2013, 10:59 AM

Quote:

Originally Posted by MadChemist

The 370z just like the 350z are designed with a part called a knock sensor. The whole purpose of this part is to detect knock if it occurs and then will compensate by adding more fuel to the chamber to prevent further knock from happening. Knock can occur due to the fuel not having enough octane. Running 87 octane will decrease your hp but that is all it will do.

Nissan 370Z Knock Sensor - Nissan OEM Engine Mechanical

What does a knock sensor do? - Yahoo Answers

The motor has to be knocking before it can be detected and the motor pulls back timing. Knocking is bad. Also, the car can only add so much fuel to compensate.

kenchan · 12-04-2013, 11:06 AM

just use the right fuel or sell the car and get the right car for 87

Gadgetech · 12-04-2013, 11:24 AM

I think it's interesting how in some parts of the country 91 is the highest you have. We have 93 readily availible and some of the cheap stations run 92.

damian_mb · 12-04-2013, 12:09 PM

If I can't afford premium gas, I don't buy a car that takes premium gas......

XiP · 12-04-2013, 12:25 PM

This thread...

falconfixer · 12-04-2013, 02:07 PM

Engine go boom just like this thread.

12-04-2013, 10:47 AM	#5 (permalink)
Rusty A True Z Fanatic Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 70 Posts: 35,571 Drives: 2011 Nismo GM 6M Rep Power: 2684440	Nobody say this yet. The motor has 11 to 1 compression ratio. That's high for a street motor. Also the combustion chamber design in the head has alot to do with it too. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

12-04-2013, 11:06 AM	#11 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141522	just use the right fuel or sell the car and get the right car for 87 UNKNOWN_370, TreeSemdyZee, onzedge and 3 others like this.

12-04-2013, 11:24 AM	#12 (permalink)
Gadgetech A True Z Fanatic Join Date: Oct 2013 Location: Cumming, Ga Posts: 1,559 Drives: The Short Bus Rep Power: 871	I think it's interesting how in some parts of the country 91 is the highest you have. We have 93 readily availible and some of the cheap stations run 92. TreeSemdyZee likes this. __________________ Upstate Z Club

12-04-2013, 12:25 PM	#14 (permalink)
XiP A True Z Fanatic Join Date: Dec 2011 Location: no clipping Posts: 11,096 Drives: ↑ ↓ Rep Power: 535	This thread... 03g35coupe6mt, JARblue, gurneyeagle and 5 others like this. __________________ I <3 Frost!!!

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12-04-2013, 10:42 AM	#8 (permalink)
Red__Zed A True Z Fanatic Join Date: Jul 2010 Location: window seat Posts: 28,940 Drives: Mostly on two wheels Rep Power: 121	Not unless your Z is a 500ZX.

12-04-2013, 10:55 AM	#9 (permalink)
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12-04-2013, 12:09 PM	#13 (permalink)
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12-04-2013, 02:07 PM	#15 (permalink)
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