100 octane in a DII?
- Thread starter Jupiter Rover
- Start date
Not likely, but I'm not providing you a guarantee! 
FWIW, if I had an extra $50 to throw away and 100 octane from the pump, I'd give a shot. I've run... I dunno the octane but it was Turbo Blue brand in my cars, no problem. The biggest issue is making sure whatever you're running is NOT leaded. But I don't think you can get leaded from any pump anymore. Might want to search the manufacturer's data, make sure they claim it's catalyst safe.
You're not going to hurt your engine by running too high octane, as long as it's not leaded or some kind of other exotic gasoline.
The Disco would have to be some kind of exceptionally badly engineered thing to somehow suffer from running 100 octane. Oh wait, it IS a Land Rover! :banghead:
Seriously, I can't even imagine the scenario... What, timing just keeps advancing uncontrolled to the point that it's firing with the intake valves still open? If that happens, let me know cause I'll sell mine.
FWIW, if I had an extra $50 to throw away and 100 octane from the pump, I'd give a shot. I've run... I dunno the octane but it was Turbo Blue brand in my cars, no problem. The biggest issue is making sure whatever you're running is NOT leaded. But I don't think you can get leaded from any pump anymore. Might want to search the manufacturer's data, make sure they claim it's catalyst safe.
You're not going to hurt your engine by running too high octane, as long as it's not leaded or some kind of other exotic gasoline.
The Disco would have to be some kind of exceptionally badly engineered thing to somehow suffer from running 100 octane. Oh wait, it IS a Land Rover! :banghead:
Seriously, I can't even imagine the scenario... What, timing just keeps advancing uncontrolled to the point that it's firing with the intake valves still open? If that happens, let me know cause I'll sell mine.
If nothing else, you're exhaust will smell cool There's nothing like the smell of race fuel (at least in my motorcycles).
There's nothing like the smell of race fuel (at least in my motorcycles).
kids, relax, its not turbo charged
dumbness. put in super unleaded and go wheeling
pour the 100octane into your tuner car, this thread is over
dumbness. put in super unleaded and go wheeling
pour the 100octane into your tuner car, this thread is over
gmookher said:
What difference does it make if it's turbochaged.
It requires high octane to achieve maximum efficiency, and we have no idea where that requirements ends. Unless you think the Rover engineers tuned it to stop advancing at exactly 91. :rofl: And then, who's 91? Some 91's are better than others, etc....
R_Lefebvre said:What difference does it make if it's turbochaged.
No, YOU have no idea, I've got plenty of time under my belt using higher octane fuels, and plenty of time under the hood of turbo charged cars, if you dont, be ware what you post. Max efficiency is NOT = to max advance; max advance is determined by how much she'll take without knocking
Thats why I am running either 90-91 octane above 4000 feet or 91-93 at sea level.
Hardly a motor worth sunoco's 94 let alone anything higher.
detonation, timing, spark advance, these are terms you may wanna look up before you make the dweb police come at you....knock sensors, too
it makes alot of difference in a turbo car where detonation is an issue. in my d2, with low assed compression v8, it matters not, but you can eagerly wait to see what the OP gets when running 100 octane. there will be no added oomph.
No, no, you have no idea. Are YOU an OEM trained powertrain engineer?
I never said max efficiency comes from max advance. I said max efficiency comes from Mean Best Timing. Mean Best Timing is often lower than Borderline Knock. That means the efficiency of the engine is knock limited. Running higher octane may let you achieve higher octane than you could get on 91.
Now, if YOU have tried it, and got nothing, that's useful input.
Without looking it up, what is BMEP? When experiencing detonation, what happens to the EGT? Why is EGR used?
I never said max efficiency comes from max advance. I said max efficiency comes from Mean Best Timing. Mean Best Timing is often lower than Borderline Knock. That means the efficiency of the engine is knock limited. Running higher octane may let you achieve higher octane than you could get on 91.
Now, if YOU have tried it, and got nothing, that's useful input.
Dude, Please.
Without looking it up, what is BMEP? When experiencing detonation, what happens to the EGT? Why is EGR used?
naw man, its not personal, and yeah, your stupid test questions DO undermine my knowledge, so please note my electing to not dignify your post with 'acronyms spelled out'...duh..how old are you, 20? or 19? LOL...
youre the one that suggested you wanted to see what would happen if we ran it on jet fuel...er a 100 octane or even 94
there's only so much advance 'Dude', short of running hotter cams, or get retarded and put in a haltech
even then, hotter cam, diffrent 'jectors, longer pulse width, all said, its a rover. what you gonna get, an extra 5%? what will 11 hp do for my 6100 lb beast?
when i want more oopph i'll rethink my gearing and diffs, and tires
dont piss match me, I'll out piss, and out shit you. but i wont out run you in my disco
lets see if someone here comes back and says "yeah man, extra octane made my d2 chirp in 2nd"
youre the one that suggested you wanted to see what would happen if we ran it on jet fuel...er a 100 octane or even 94
there's only so much advance 'Dude', short of running hotter cams, or get retarded and put in a haltech
even then, hotter cam, diffrent 'jectors, longer pulse width, all said, its a rover. what you gonna get, an extra 5%? what will 11 hp do for my 6100 lb beast?
when i want more oopph i'll rethink my gearing and diffs, and tires
dont piss match me, I'll out piss, and out shit you. but i wont out run you in my disco
lets see if someone here comes back and says "yeah man, extra octane made my d2 chirp in 2nd"
The higher the octane number, the more energy it takes to ignite the gas.
Q : Does High Octane Gas Improve Gas Mileage?
A:No. Unless your car is explicitly designed to run on high octane gas (it's rare, read your car's manual), using a high octane gas will NOT give your car better mileage. That's because the rating refers to how much energy it takes to ignite the gas, not directly to how much energy the gas puts out.
Q : Does High Octane Gas Give More Power?
A:No. Unless your car is explicitly designed for high octane gas (see your car's manual), using a high octane gas will NOT improve the power output of your engine. Again, the octane rating relates to how much energy it takes to ignite the gas, but NOT directly to how much energy the gas puts out.
Exception 1 - By Design
One exception is with engines or cars designed for high octane gas. In that case, using high octane gas WILL improve performance and mileage. The reason has to do with the compression and ignition timing characteristics of the engine. Those specially designed engines will only perform efficiently with higher octane gas. Most engines are not designed this way.
Exception 2 - Engine Knocking
The second exception is if your car has a lot of engine knocking or pinging. This is a sign that the gas is not igniting when it should. This reduces the power and efficiency of the engine. Assuming your car's manual says it's okay, using a high octane gas can help.
Does High Octane Gas Reduce Engine Knocking?
Yes! If anything, high octane gas will help reduce engine knocking in most cars (assuming your car's manual says it's okay to use such a gas). The reason follows from the fact that octane is related to how much energy is needed to ignite the gas. If the gas ignites too easily, it can ignite before it's suppose to, which causes the engine knocking or pinging sound. Using high octane gas can reduce and even eliminate that knocking, and help your engine run more efficiently.
Conclusion
In most cases there is no reason to use and pay for expensive high octane gas. Unless your car was designed for such gas:
* High octane gas does NOT improve gas mileage
* High octane gas does NOT improve power output
Exceptions: If your car is explicitly designed for high octane gas, use it. If your car has engine knocking problems (and your car manual says it's okay), using high octane gas may reduce the knocking.
re-read..
Q : Does High Octane Gas Improve Gas Mileage?
A:No. Unless your car is explicitly designed to run on high octane gas (it's rare, read your car's manual), using a high octane gas will NOT give your car better mileage. That's because the rating refers to how much energy it takes to ignite the gas, not directly to how much energy the gas puts out.
Q : Does High Octane Gas Give More Power?
A:No. Unless your car is explicitly designed for high octane gas (see your car's manual), using a high octane gas will NOT improve the power output of your engine. Again, the octane rating relates to how much energy it takes to ignite the gas, but NOT directly to how much energy the gas puts out.
Exception 1 - By Design
One exception is with engines or cars designed for high octane gas. In that case, using high octane gas WILL improve performance and mileage. The reason has to do with the compression and ignition timing characteristics of the engine. Those specially designed engines will only perform efficiently with higher octane gas. Most engines are not designed this way.
Exception 2 - Engine Knocking
The second exception is if your car has a lot of engine knocking or pinging. This is a sign that the gas is not igniting when it should. This reduces the power and efficiency of the engine. Assuming your car's manual says it's okay, using a high octane gas can help.
Does High Octane Gas Reduce Engine Knocking?
Yes! If anything, high octane gas will help reduce engine knocking in most cars (assuming your car's manual says it's okay to use such a gas). The reason follows from the fact that octane is related to how much energy is needed to ignite the gas. If the gas ignites too easily, it can ignite before it's suppose to, which causes the engine knocking or pinging sound. Using high octane gas can reduce and even eliminate that knocking, and help your engine run more efficiently.
Conclusion
In most cases there is no reason to use and pay for expensive high octane gas. Unless your car was designed for such gas:
* High octane gas does NOT improve gas mileage
* High octane gas does NOT improve power output
Exceptions: If your car is explicitly designed for high octane gas, use it. If your car has engine knocking problems (and your car manual says it's okay), using high octane gas may reduce the knocking.
re-read..
jet fuel? are you trying to sound cool buddy? sorry, but Some of us can actually afford 93 unlike you.gmookher said:
are you bashing us 20 year college guys who can put up 225lbs?
" dont piss match me, I'll out piss, and out shit you."
i hope you know how to use the restroom, or does your mother fly home to wipe your ass?
Last edited:
Hey fucktard Indian women wear Bindis. Keep your Cracker ass ignorant racial shit to your narrow minded self.
the coward deletes his posts...he posted the below at Mon 5/12/2008 6:08 PM then realized how pathetic his values REALLY are in real life, and why it may be best to not air his laundry publically: see for yourself
Jupiter Rover has just replied to a thread you have subscribed to entitled - 100 octane in a DII? - in the Discovery - Technical Discussions forum of DiscoWeb Message Boards.
This thread is located at:
http://www.discoweb.org/forums/showthread.php?t=48630&goto=newpost
Here is the message that has just been posted:
***************
jet fuel? are you trying to sound cool buddy? sorry, but Some of us can actually afford 93 unlike you.
are you bashing us 20 year college guys who can put up 225lbs? dude.. go back to india you dot head.
nice, self proclaimed racist...
you should thank your folks for the upbringing you have, making a public ass of yourself..what a shame...another racist bigot, make your family PROUD, do ya? yeah i'm Indian, and its India that will profit from the production of land rovers, so deal with it, 'buddy'
...and where do you get the idea I cant or dont afford 93? what makes you think you have any idea what I fill my tank with? bright, very bright i see...my brown ass can afford plenty dont you worry, boy...
fucking morons getting all excited over putting racing gas in a disco...
go jerk off to my albums some more
SO I am a dot head, from india, what does make the owners of this site in your eyes? You got a lotta nerve -I tolerate alot, but I don't tolerate racism. them is fitin words, and you dont wanna go there.
watch it.
Jupiter Rover has just replied to a thread you have subscribed to entitled - 100 octane in a DII? - in the Discovery - Technical Discussions forum of DiscoWeb Message Boards.
This thread is located at:
http://www.discoweb.org/forums/showthread.php?t=48630&goto=newpost
Here is the message that has just been posted:
***************
jet fuel? are you trying to sound cool buddy? sorry, but Some of us can actually afford 93 unlike you.
are you bashing us 20 year college guys who can put up 225lbs? dude.. go back to india you dot head.
nice, self proclaimed racist...
you should thank your folks for the upbringing you have, making a public ass of yourself..what a shame...another racist bigot, make your family PROUD, do ya? yeah i'm Indian, and its India that will profit from the production of land rovers, so deal with it, 'buddy'
...and where do you get the idea I cant or dont afford 93? what makes you think you have any idea what I fill my tank with? bright, very bright i see...my brown ass can afford plenty dont you worry, boy...
fucking morons getting all excited over putting racing gas in a disco...
go jerk off to my albums some more
SO I am a dot head, from india, what does make the owners of this site in your eyes? You got a lotta nerve -I tolerate alot, but I don't tolerate racism. them is fitin words, and you dont wanna go there.
watch it.
Last edited:
gmookher said:
31. Unlike you, I've been in the industry for 7 years. Professionally. Not playing a boy racer on the web.
I didn't ask you to spell out acronyms. I want you to explain the concepts in your own words. Come on, what happens to EGT when you get detonation (and why). Simple question. And don't cut and paste something you searched on the web like you so obviously did with that weak sauce octane bullshit.
Thank you for proving my point. What part of "Use only premium fuel" do you not understand?
Ok, here's an easy one. If you dodge this it's cause you're at total pussy: What is the difference between MON and RON? This directly relates to octane ratings, so if you know the basics, you should know this. For bonus points, why is it a common internet legend that higher octane ratings are available in Europe?
Man, you guys are doing a great job at being productive. :applause:
Now, time for me to chime in haha
Wouldn't EGT increase with detonation, since the uneven burning would create a higher CHT? haha love those acronyms.
But seriously, make love not war. Lets just go wheeling.:bigok:
Now, time for me to chime in haha
Wouldn't EGT increase with detonation, since the uneven burning would create a higher CHT? haha love those acronyms.
But seriously, make love not war. Lets just go wheeling.:bigok: