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Wrong Petrol In Skyline! Unleaded Instead Of Premium...

PAV34
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PAV34 Mentor

PAV34

Posted
Posted

So my mate went to the BP servo to fill up.

long story short he accidentally pumped about 2 litres of unleaded instead of premium (ultimate).

he freaked out and then started to fill the rest until full with premium.

will the 2 litres of unleaded affect his car at all?

i said it wont but he wont beleive me so i thought i should ask you folks...

what do you think??

GorGasm Collaborator

GorGasm

Posted
Posted
Hey guys probly a stupid question but do all skylines have to run on premium? :| damn thats gona kill my wallet!!! What about 180sx's ?? Cheers

Yes if you want to drive them.

They will detonate with lower octane and higher boost.

Its funny that the guy is worried about 2L of low grade in a tank of premium. If the low grade is 91 octane and high is 98 then it works out at about 97.75% octane. Worry? i think not.

Mandingo Proficient

Mandingo

Posted
Posted
Hey guys probly a stupid question but do all skylines have to run on premium? :| damn thats gona kill my wallet!!! What about 180sx's ?? Cheers

not just all turbo skylines, all turbos.

Big Rizza Mentor

Big Rizza

Posted
Posted (edited)

My understanding is you can take this as a general rule: Any petrol engine with forced induction or high compression ratio (say 10:1 or higher) needs high octane fuel to stop preignition of the fuel, which can potentially damage engine interals.

There are a few exceptions - the Honda Jazz runs something like 10.8:1 compression ratio, but still accepts regular unleaded. But as a general rule, it works.

Edited by Big Rizza
J_Red33 Experienced

J_Red33

Posted
Posted

Well there are a few more that are cracking the 10:1 barrier with standard unleaded now. I know the new BF Falcon 6's (not the turbo's though) are running higher than 10:1 not sure about others, but it shows that it's possible with the right engine & tuning.

bombastic Collaborator

bombastic

Posted
Posted

The manual I was given for my R33 says "Unleaded fuel with Research Octane Number 91 or higher". Does anyone have a manual that says otherwise?

If the manufacturer says 91, then whats the prob? Surely they wouldn't tune them for 98 and then advise running 91...

By the way the only thing that's been done to mine is exhaust. Boost is stock.

edspaged2 Rising Star

edspaged2

Posted
Posted
The manual I was given for my R33 says "Unleaded fuel with Research Octane Number 91 or higher". Does anyone have a manual that says otherwise?

If the manufacturer says 91, then whats the prob? Surely they wouldn't tune them for 98 and then advise running 91...

By the way the only thing that's been done to mine is exhaust. Boost is stock.

from what ive heard, Japan have better fuel? but either way, like Flipmo and GorGasm said, it is better if you run a (newer) turbocharged on a higher octane level. 95 or 98 RON.

Just wondering, how much is it for premium at the moment say...... in Sydney? Or Brisbane?

bombastic Collaborator

bombastic

Posted
Posted
from what ive heard, Japan have better fuel? but either way, like Flipmo and GorGasm said, it is better if you run a (newer) turbocharged on a higher octane level. 95 or 98 RON.

Just wondering, how much is it for premium at the moment say...... in Sydney? Or Brisbane?

Yeah I'm just trying to save some money here, if possible... Even running 95 would save a bucks at the pump.

98 is about $1.40-1.50 atm in my area (south Sydney).

Grant Rising Star

Grant

Posted
Posted

Bugger all. I wouldn't bother using anything higher than 95ron in a non turbo skyline. Anyone wanna argue with me?.

In fact I drive an R32 gts-t, and I only use 95ron the majority of the time.

I do live in a cool climate though. During the summer, or when I plan on giving my car a bit of a hard time, I always run 98ron.

jake32 Mentor

jake32

Posted
Posted
You wouldn't believe how many people at my work put permium in their diesels thinking it's diesel.

Now thats no good.

i put 15ltr of diesel in a turbo cefiro on the way home from the docks once...what a farkin mess that was ..can still taste it :thumbsup:

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