High octane > Regular Unleaded in reguar LS engine..

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Oct 22, 2006 | 07:57 AM

Presto800

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High octane > Regular Unleaded in reguar LS engine..

If a regular LS motor has been running a higher octane fuel, would it be okay to switch over to regular unleaded gas?

I know i used regular unleaded in my last LS and it was fine, but would a switch between the two gases make a difference?

Oct 22, 2006 | 08:06 AM

Padawan

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Re: High octane > Regular Unleaded in reguar LS engine.. (Presto800)

Yes, a stock B18B only requires regular 87 octane unleaded.

Oct 22, 2006 | 08:45 AM

full Circling

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It will actually run better on 87

Oct 22, 2006 | 08:52 PM

vladd

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Re: (full Circling)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by full Circling »</TD></TR><TR><TD CLASS="quote">It will actually run better on 87</TD></TR></TABLE>

Oct 22, 2006 | 09:15 PM

GoldCoin

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Re: (full Circling)

sure it will . that why when you open the gas door it says unleaded only.

Oct 22, 2006 | 09:34 PM

toshiro

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Re: (DC TWOin IT)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC TWOin IT »</TD></TR><TR><TD CLASS="quote">sure it will . that why when you open the gas door it says unleaded only. </TD></TR></TABLE>

Actually, that's so you don't put leaded fuel in it.

Oct 22, 2006 | 09:51 PM

GoldCoin

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Re: (toshiro)

leaded fuels was back in the day.

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Oct 22, 2006 | 09:53 PM

toshiro

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So what you're saying is because leaded fuel is no longer common in the usa, "unleaded fuel only" now means "87 octane only?"

Oct 22, 2006 | 09:55 PM

GoldCoin

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Re: (toshiro)

yes because the gsr says premium. so whats premium? 87??? no its 91 .
unleaded = 87
unleaded+=89
premium=91

use your head man.

Oct 22, 2006 | 10:14 PM

#10

Spectrum24x

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Re: (DC TWOin IT)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC TWOin IT »</TD></TR><TR><TD CLASS="quote">yes because the gsr says premium. so whats premium? 87??? no its 91 .
unleaded = 87
unleaded+=89
premium=91

use your head man.

</TD></TR></TABLE>

Lol.... you couldnt be anymore off target... unleaded fuel only means not to use leaded fuel...

Leaded fuel was back in the day, but you can still get your hands on some stuff..
"unleaded fuel only" does not mean 87 only you moron..
Unleaded+ is still unleaded fuel...
Premium unleaded is still unleaded fuel...

Use your head man.

Oct 22, 2006 | 10:18 PM

#11

red01teg

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Re: High octane > Regular Unleaded in reguar LS engine.. (Presto800)

running 91 octane on a car that wasnt made for it can actually be detrimental to ur engine. The temperature inside the combustion chamber raises and can lead to a great range of problems in the long run..

Oct 22, 2006 | 11:12 PM

#12

01geeser

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Re: (DC TWOin IT)

Oct 23, 2006 | 01:16 AM

#13

three stars, two bars

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Re: (01geeser)

Here we go again.

Oct 23, 2006 | 04:51 AM

#14

B18c5__Owns

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Re: (three stars, two bars)

lol that was dumb.

Oct 23, 2006 | 05:23 AM

#15

banmeagain

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Re: (B18c5__Owns)

read your owners manuals douschebags
end of thread

Oct 23, 2006 | 05:55 AM

#16

Rajin

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Re: (Spectrum24x)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spectrum24x »</TD></TR><TR><TD CLASS="quote">

Lol.... you couldnt be anymore off target... unleaded fuel only means not to use leaded fuel...

Leaded fuel was back in the day, but you can still get your hands on some stuff..
"unleaded fuel only" does not mean 87 only you moron..
Unleaded+ is still unleaded fuel...
Premium unleaded is still unleaded fuel...

Use your head man.</TD></TR></TABLE>

Why would you want to run higher octane in a car that does not need it.
By no means does a LS need above 87.

Oh and it pretty much means. Regular Unleaded fuels.

Oct 23, 2006 | 06:01 AM

#17

Yemdogg

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From: Red Deer, AB, Canada

Re: (Rajin)

in my owner's manual it says 87 or higher for my RS... so i run 91

Oct 23, 2006 | 06:11 AM

#18

be.twenty

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Re: (Yemdogg)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Yemdogg »</TD></TR><TR><TD CLASS="quote">in my owner's manual it says 87 or higher for my RS... so i run 91</TD></TR></TABLE>

wasting your money.. unless you have mods that require a higher octate, it's doing nothing for you

but then again, how are the gas prices in Alberta? in ont, we're at about 85 cents / litre