Running a ZE on 87 octane?

SimonPK · Post by **SimonPK** » October 14th, 2003, 5:58 pm

What will happen if I stop using 93 octane gas?

Previous posts say either nothing as the ecu with automatically retard the timing to prevent detonation or the engine will knock due to pre-detonation? As these 2 views are exactly opposite it would be good to know the right answer!

papa roached · Post by **papa roached** » October 14th, 2003, 6:43 pm

i wouldnt, its a high performance motor meant to use premium, i wouldnt stop using it

Tyler17rose · Post by **Tyler17rose** » October 14th, 2003, 7:14 pm

Even the regular K8 doesnt like 87, i wouldnt risk it if i were you. Dont be cheap!

Spydie · Post by **Spydie** » October 14th, 2003, 7:24 pm

Originally posted by T-Rose:
Even the regular K8 doesnt like 87, i wouldnt risk it if i were you. Dont be cheap!

got that right....putting 87 octane in a high rev engine is like playing a record on slow setting.

SimonPK · Post by **SimonPK** » October 14th, 2003, 8:05 pm

It was the post aboout ZE fuel economy that got me thinking - if premium is 10% more expensive than regular would I get 10% more fuel economy or 10% more pleasure? Probably not both - as I only use my car to commute back and to work there's only so much horsepower I can use getting up to 80km/hr on the fastest stretch into work!

papa roached · Post by **papa roached** » October 14th, 2003, 8:56 pm

dont be cheap, that motor is not meant to have 87 in it or even near it

Gro Harlem · Post by **Gro Harlem** » October 14th, 2003, 9:45 pm

the motor was designed for premium fuel. I think the recommended japanese rating was 102 octane, which is close to what our 94 octane is here. I use 92-93 in mine, since the octane ratings at gas stations vary between my sea-level hometown, and 1500ft elevation college-town.

SimonPK · Post by **SimonPK** » October 14th, 2003, 10:25 pm

okay so I'm cheap but will 87 wreck the engine?!

Tyler17rose · Post by **Tyler17rose** » October 14th, 2003, 11:00 pm

You might get some ping or knock. Dont risk it man.

Taras · Post by **Taras** » October 14th, 2003, 11:51 pm

If you are not prepared to run 94 in your Ze, then stick with the stock engine. My Ze does not even like a 92 downgrade, pretty picky eh?

papa roached · Post by **papa roached** » October 15th, 2003, 12:07 am

you cant be cheap with a motor, if you do you can end up with a nice hole in the top of your piston or a bent rod

SimonPK · Post by **SimonPK** » October 15th, 2003, 12:20 am

Sorry to be a pain but what does the knock sensor do then? I thought it listened for pre detonation and then retarded the ignition before any damage could occur - I would expect to lose some hp but not wreck the engine if this were the case.

papa roached · Post by **papa roached** » October 15th, 2003, 7:59 am

its for the occasional knock or ping, they do happen, its to keep the motor safe while still running the octane rating meant for the car, not for running a octane rating WAY below what the motor calls for

UoMDeacon · Post by **UoMDeacon** » October 15th, 2003, 3:57 pm

I've always used 87 in my V6, and have never experienced knocking. The manual states 87 is fine.

<small>[ October 15, 2003, 03:02 PM: Message edited by: UoMDeacon ]</small>

Gro Harlem · Post by **Gro Harlem** » October 15th, 2003, 5:05 pm

So your manual applies for the KLZE engine too? Riiight...

use 87 if you want...we don't care if you blow up your engine

MX-3.com

Running a ZE on 87 octane?

Running a ZE on 87 octane?

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