use what the manufacture calls for. Otherwise you can get premature detonation. these motors are smaller motors so premium do much. . Play it safe and use the 87. If you ride the RPM's high before you shift, then premium wouldnt hurt but it wont help either.

 

"If you ride the RPM's high before you shift" i have automatic

 

That doesn't matter. If your pressing hard on the pedal it still goes to higher RPMS to shift. Premium gas is a waste of money unless your using very high octane racing gas in a high RPM motor or a motor that was designed to use it. Stick with the manufacturer recommended 87

 

allright ;D also should i use over drive for better mpg? also do you have an n/p button? it suppose to give more power but i dont feel it ;(

 

Overdrive (mechanics) - Wikipedia, the free encyclopedia

 

Octane basically measures the resistance the gas has to igniting. The higher the number, the more resistance.
Your car will run just fine with 87 octane under any condition. Here is some info for you to read that will explain all:
Detonation and Pre-Ignition
I was running this car in NY on 87 octane, and have moved to Ireland where I can only get 91 octane. The car really has not run differently under either condition. Frankly, I wish that I could find low octane gas here - I am spending money on a premium gas that the car does not need.

 

listen to dad.
what car? , you forgot to say that!
is it a stock car?
what country ?, some have 5 grades of fuel. even in usa. some more....
in South America, it goes even to lower grades.
and 5 standards by which to rate it.
but if your in a 3 pump county the fuel listed here.
works great on the low end. 87

the high octane gas is for higher compression engines. (burns slower, no detonations))
and is a waste of money to burn expensive gas on a low compression engine.

 

you lost the op guide.?
you can get it for free, many ways.


here is page 1 , in usa we use the average for R and M method.

 

That photo makes me sick. Lucky you, to have a choice of 5 different octanes. We are compelled to use 91 octane here at all times - little 4 cylinder, 90 hp cars all running on hi-test. Disgusting waste of money.

 

lol, no kidding. its still tops at 90. Around here you used to get 101 octane as premium. now the 101 is the $5 a gal stuff that only sells at one Sinclair station in town[ For my Honda CBR 600]

 

yes, laws very by country and state
in calif, they run RFG fuel.
so when they run out, (stuff happens there)they cant import it from Oregon or Nevada.
fools they are, C.A.R.B
and MBTE junk, poisoning the drinking water, too.

is the gas tax by gallon or retail price?
if latter, bingo.
here, it is by gallon. not price.

87 is more explosive. (some day PDE engines will exploit this magical juice)
funny huh.
how ppl dont realize that.

 

hi i live in mexico theres only two types one is red and the other is green lol, i think the red one is 91 or 92 and for sure the green is 87, so my car would just do fine with 87? i wont get any boost or better mpg with the premium gasoline?

 

iJovan,
Again, the simple answer is that higher octane gas offers no advantage in an engine designed to operate on lower octane gas. It does not provide more power or better MPG.

The more complicated answer is that you can get more power from higher octane gas if you modify the engine to take advantage of that fuel's greater resistance to detonation. Also, on some engines with electronic fuel injection systems, using higher octane gas will allow the computer to advance the ignition timing slightly more to get a tiny increase in power. It is highly unlikely you would be able to feel the increase, and the higher cost of higher octane gas will more than offset any increase in MPG you might see.

 

the simple answer is one page on of the op guide.

this motor has CR for low octane.

that is correct on some advanced new cars
Some have a higher CR Engine now. (compression ratio)
and the ECU listens to the knock sensor( we dont have one) and the knock sensor
can hear a knock 100 times better than any human. ( can show vids)
it then finds the ping points for fuel in your Tank, and trims for that.
some have a sonic ethanol sensor on the fuel line that finds
if fuel is E85 or ?
that topic is far away from 1988 designed cars, (here) 22 years ago for many.

btw , if you tune the engine for pure E100 , it can make more power than Gasoline.
read Jeff Hartman's books for the way.
they hold land speed records with E100.
E100 is Ethanol 100% btw.

they run way higher CRs !

my comments are simplistic. the combustion chamber design and flame front speeds, etc all play in to detonation and how to avoid it .
in fact the combustion chamber (and piston tops) are tuned to get max HP, way before PING. in fact the HP drops off after you cross that point.
so some engine are very unhappy with too much advance on the spark. (can show dyno proof of many engines that do that) ask any ECU tuner.

 

87 octane is fine for your car. You will get no benefit of running the higher octane. (other than spending more money for it, but, that cannot be considered a benefit!!)

 

ive been running 100octane airplane fuel
in mine

is that why the feds are so mad at me. (beaching about back taxes bla bla)...
and my wallet is so thin?
gee.

but id swear my butt-dyno says "mow power".)red neck talk)

tell me im wrong,

 

Test it with both fuels on a real dyno or a drag strip. Your butt-dyno may be influenced by your head. That's why the gold standard of testing is double-blind tests where the person sitting on the butt-dyno doesn't know what kind of fuel is being used.

 

my comment was joke. 100%
the butt dyno's are the silliest things you can read on forums.
some even believe it.
and the other laugh is reporting real dyno HP improvements that are in side the
margin of error of the Dyno.
Eg: my new CAI , makes 1HP more at 2000 rpm
We called that , "testing the tester" , not the car.

 

Not a gear head, so had to google this to see what 'butt dyno' was. Ah, all these hits on this phrase can't be serious, right? Er, hit WOT, found my cellulite in the back seat, something like that? Weird.

 

guy/gal buys the air cleaner rotor turbo kit for $29.95 ( easy money for seller )
put it in and drives
and swears his seat of pants, tells him , MORE POWER.
or some other magic.

stay on the car forums
look up
buttdyno
and snake oil.
10 million hits.

in reality there are 4
1: buttdyno. ( fails placebo test every time) (booty dyno, never fanny dyno, , or glut dyno, seat of pants dyno, etc.)
2: real dyno
3: inertial gravity measurement device in the car. (real device, quality varies)
4: track times.

only 1 is useless.


here one of the largest car forums in the world VW
60 hits
http://forums.vwvortex.com/search.php?searchid=9369518




websters: funny
Related to FANNY
Synonyms: backside, behind, booty (also bootie) [slang], bottom, breech, bum, buns, butt, caboose, can, cheeks, derriere (or derrière), duff, buttocks, fundament, hams, haunches, heinie [slang], hunkers, keister (also keester) [slang], nates, posterior, rear, rear end, rump, seat, tail, tail end, tush [slang]

 

Related to FANNY
Synonyms: backside, behind, booty (also bootie) [slang], bottom, breech, bum, buns, butt, caboose, can, cheeks, derriere (or derrière), duff, buttocks, fundament, hams, haunches, heinie [slang], hunkers, keister (also keester) [slang], nates, posterior, rear, rear end, rump, seat, tail, tail end, tush [slang]

Hmmm......in the UK and Ireland, at least, fanny means a whole different thing - for women only, and not in the rear, either!!

 

guy/gal buys the air cleaner rotor turbo kit for $29.95 ( easy money for seller )
put it in and drives
and swears his seat of pants, tells him , MORE POWER.
or some other magic.

stay on the car forums
look up
buttdyno
and snake oil.
10 million hits.

in reality there are 4
1: buttdyno. ( fails placebo test every time) (booty dyno, never fanny dyno, , or glut dyno, seat of pants dyno, etc.)
2: real dyno
3: inertial gravity measurement device in the car. (real device, quality varies)
4: track times.

only 1 is useless.


here one of the largest car forums in the world VW
60 hits
Vortex Media Group




websters: funny
Related to FANNY
Synonyms: backside, behind, booty (also bootie) [slang], bottom, breech, bum, buns, butt, caboose, can, cheeks, derriere (or derrière), duff, buttocks, fundament, hams, haunches, heinie [slang], hunkers, keister (also keester) [slang], nates, posterior, rear, rear end, rump, seat, tail, tail end, tush [slang]

lol, yea, I even got all caught up in that brown gas Hydrogen thingy until i made one and it didnt do squat..... sounded great though lol...Popular Science finally came out and did a reality check on it. ,,..

 

i wonder how much those snake oil guys made ww.?
when i was just a very young lad, in early 62'
id go to fair.

and this guy there had a running naked inline push rod 6 on a stand.
and was running the whole engine. on water (for oil)
and this "snake oil bottle" in hand, come on folks step right up, have i got a deal for you.........
nothing new under sun.
or
SSDD.


the browns gas is easy
Dino input ( gasoline)
calculate the total hydrogen atoms burning per second at idle (forget 6000 rpm )
now calculate the Browns gas bottle output per second. (yes the device is well known and predictable to a fault. )
now make a ratio with these 2 numbers.
you will see that Dino juice is very very hot stuff. and brown gas is not squat.

one can do the MOLE ratio's
to make it more readable. (counting atoms, gets messy) but is easy.

The spec on gas, is very much published. as is atmospheric oxygen at 20% std pressure.