What octane to run???
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#9
NAs dont need too high octanes, unless heavily modified.
Turbos on the other hand need as much octanes as possible, due to the higher temperatures (to avoid detonation). Over here we have 98 Oct, which is "SuperPlus", and now we also have Shell's "V-Power", which is 96 Oct, but also contains various engine cleaning products
Turbos on the other hand need as much octanes as possible, due to the higher temperatures (to avoid detonation). Over here we have 98 Oct, which is "SuperPlus", and now we also have Shell's "V-Power", which is 96 Oct, but also contains various engine cleaning products
#11
Originally posted by Silkworm
Liter? What the heck is a liter?
And yes, 87 is fine for NA, 92/94 for a Turbo..
98?!!!!!!!!!!!!!!!
Good grief! I wish!
PaulC
Liter? What the heck is a liter?
And yes, 87 is fine for NA, 92/94 for a Turbo..
98?!!!!!!!!!!!!!!!
Good grief! I wish!
PaulC
#14
Originally posted by Silkworm
For some perspective, here in the People's Republik, we only get 91.
Yes, 91. Yes, tha'ts lower than the MID grade some of you get.
@#%*
PaulC
For some perspective, here in the People's Republik, we only get 91.
Yes, 91. Yes, tha'ts lower than the MID grade some of you get.
@#%*
PaulC
I'm gonna hit those jerks on the head with a torque wrench!
#17
I wish I was driving!
Originally posted by Scott 89t2
wo you back from the bushes sean?? or did you break into some bonie cabin with a phone line and computer LOL..
wo you back from the bushes sean?? or did you break into some bonie cabin with a phone line and computer LOL..
I stay at camp, and every day get a ride into Vanderhoof with the camp maintenance guy and then truck back home.
I go to town for physio, but still have 6 or 7 hours to spend around the *city*.
#18
Octane
A liter is what everyone in the world uses to measure fluid volume, except for good ol' America.
Most NA owners I've talked to don't seem to find a difference between 87 and higher grades (89,91, 94, 96, 101...etc)
I've found that I do notice performance differences when using 87 over 94. BOTH on my 89 TII and even on my 85 GSL-SE (13B NA EGI).
I also find 94 burns cleaner, and gets me better kpl (mpg).
/F/
Most NA owners I've talked to don't seem to find a difference between 87 and higher grades (89,91, 94, 96, 101...etc)
I've found that I do notice performance differences when using 87 over 94. BOTH on my 89 TII and even on my 85 GSL-SE (13B NA EGI).
I also find 94 burns cleaner, and gets me better kpl (mpg).
/F/
#20
I wish I was driving!
Re: Octane
Originally posted by Forseti
A liter is what everyone in the world uses to measure fluid volume, except for good ol' America.
Most NA owners I've talked to don't seem to find a difference between 87 and higher grades (89,91, 94, 96, 101...etc)
I've found that I do notice performance differences when using 87 over 94. BOTH on my 89 TII and even on my 85 GSL-SE (13B NA EGI).
I also find 94 burns cleaner, and gets me better kpl (mpg).
/F/
A liter is what everyone in the world uses to measure fluid volume, except for good ol' America.
Most NA owners I've talked to don't seem to find a difference between 87 and higher grades (89,91, 94, 96, 101...etc)
I've found that I do notice performance differences when using 87 over 94. BOTH on my 89 TII and even on my 85 GSL-SE (13B NA EGI).
I also find 94 burns cleaner, and gets me better kpl (mpg).
/F/
The "performance difference" with higher octane fuel on your NA is purely psychosomatic.
#21
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Re: Re: Octane
Originally posted by scathcart
You should always be using high octane fuel on your TII anyway, and your NA car will run faster on 87 octane fuel.
The "performance difference" with higher octane fuel on your NA is purely psychosomatic.
You should always be using high octane fuel on your TII anyway, and your NA car will run faster on 87 octane fuel.
The "performance difference" with higher octane fuel on your NA is purely psychosomatic.
#22
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Re: Re: Re: Octane
Originally posted by Evil Aviator
I don't suppose that any of you TII owners have bothered to look up the octane requirements in your owner's manual?
I don't suppose that any of you TII owners have bothered to look up the octane requirements in your owner's manual?
Seperate octane question: In Japan, they have higer octane fuel correct? So if you buy a J-Spec, shouldn't you have to use a higher octane fuel like 91 with a booster??
#24
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Re: Re: Re: Re: Octane
Originally posted by AE Turbo
Aren't those minimum requirements?
Aren't those minimum requirements?
What does a "minimum" anti-knock requirement mean to you? For example, if 87 is the "minimum" octane required to keep the engine from detonating, what would be gained by using 91 octane? Would 91 yield even less detonation that you didn't have to begin with using the 87? How about 93 octane? Would that allow for even less, less, non-existent detonation than the 91 octane? Where does it end?
Originally posted by AE Turbo
Seperate octane question: In Japan, they have higer octane fuel correct? So if you buy a J-Spec, shouldn't you have to use a higher octane fuel like 91 with a booster??
Seperate octane question: In Japan, they have higer octane fuel correct? So if you buy a J-Spec, shouldn't you have to use a higher octane fuel like 91 with a booster??
RON: Research Octane Number, based on normal engine operating conditions, this is the standard for most countries.
MON: Motor Octane Number, based on higher engine speeds and inlet temperatures, this is usually 6-12 points lower than the RON for the same fuel.
PON: Pump Octane Number, based on the formula (RON+MON)/2, which in English means an average of the two. This is the US standard, and you may have noticed a yellow label on the gas pump listing this formula.
SON: Supercharge Octane Number, which is a dual-rating for aviation fuel. The first rating is based on a supercharged engine at cruise, and the second rating is based on a supercharged engine at boost. The common avgas carries a 100/130 SON rating.
Note that some fuels will have better anti-knock properties under load (MON) than others, despite the fact that they carry the same PON or RON. Also, other factors besides fuel octane rating will affect detonation, such as tuning, engine wear, humidity, altitude, ambient temperature, etc. The bottom line here is to find a fuel brand and grade which works well for your car under the conditions in which you drive it. BTW, for those of you complaining about the fuel differences in the USA, here is a map of the problem:
http://www.exxon.com/exxon_gas/us_fuels_map.pdf
Here is some high-octane consumer info from the US Federal Trade Commission. Warning - do not read if you have been paying extra for super unleaded all these years, LOL.
http://www.ftc.gov/bcp/conline/pubs/autos/octane.htm