Q: How much is 98 Octane?

[Flyingpony]

Read in threads here that there exists 98 Octane in NZ. I've just been to the Mobil station around the corner in Chch, and they don't stock 98 Octane or had any Mobil 1 4T oil :cry:. Only the North Island has 98 Octane.

So Question for those in Auckland, Hamilton, or Wellington:

How much is 98 Octane in relation to standard 91 and 96?
(Note: Caltex 96 is 1c more than the rest - Shell, BP, and Mobil).

Thanks.

Edit: I run my bike on 91 as per owners manual. Was just wondering price difference as my car is supposed to use 98.

[Drunken Monkey]

Same price as 96. The petrol station will offer you 98 as their high octance and won't have 96 on pump.

[bugjuice]

Last time I gassed up:
91 - $1.23
96 - $1.28
98 - $1.33
all -ish. Depends where you go, but only varies by a cent or so. Rarely have I seen 96 and 98 at the same price tho (can't actually remember..)

I've seen a couple of places sell 'Race gas' which is 'off AvGas' so the guy at the desk told me. It's about 106 @ $1.95.. and wouldn't make much difference.. but smells God like. Was thinking about filling up with that, then pop to Repco/Warehouse and buy some Octane boost. try to get 110 rated fuel.. and watch it blow up..

[bear]

Yeah, from what I've seen 98 is +5c up from 96 in general.

A few petrol stations in Wellington only stock 91 & 98 - bit of a bugger if you want 96.

[James Deuce]

I buy 98 for the FIAT and the BP stations I get it from charge the same as 96.

You guys paying more are being ripped off.

[Fart]

Running on high octane does not make your bike go faster. So, dont waste your money.

[campbellluke]

Can't get 98 in the south island. It is just a waste of money anyway.

Edit: Does your FXR150 manual tell you to use 95 or higher? If It doesn't, don't waste your money on 96.

I used to have a single cylinder 145cc honda and 96 fouled up it's spark plug. I will never use that shit again.

[James Deuce]

Running on high octane does not make your bike go faster. So, dont waste your money.
No, but it stops pre-ignition in my FIAT.

[vifferman]

Running on high octane does not make your bike go faster. So, dont waste your money.
True.
Run your bike on the lowest octane recommended for it, and you'll get the most power.
However, I run the VFR on BP Ultimate (98) because it pinks on 91, 95/96 is generally too crappy (burns really sooty, due to the extra xylene/toluene in it), and it runs better on 98. Oh yeah - and because my wife told me to.

Bugjuice - you could put 200 octane in your bike if you like - it won't blow up, but it will go slower.

[vifferman]

No, but it stops pre-ignition in my FIAT.
True.
Same with our Fiat, our two Peugeots, and my VFR. Also stops the plugs sooting up, and the injectors getting fouled (they all have EFI).

[loosebruce]

Petrols too much IMO, it should all be free to use for us environmentaly friendly um biker types :yes:

[TwoSeven]

True.
Run your bike on the lowest octane recommended for it, and you'll get the most power.
However, I run the VFR on BP Ultimate (98) because it pinks on 91, 95/96 is generally too crappy (burns really sooty, due to the extra xylene/toluene in it), and it runs better on 98. Oh yeah - and because my wife told me to.

Bugjuice - you could put 200 octane in your bike if you like - it won't blow up, but it will go slower.
Yes, but there is no such thing as anything as 100+ octane fuel. Anything over 100 is simply additional additives (usually of a crap nature).

98 will only be usefull for those with high compression engines in the latest newest machines - I think 13.5:1 and higher compression.

[MrMelon]

Last week 98 at Mobil was 5c more than 96 at Caltex. I thought it's always been that way everywhere.

[James Deuce]

Yes, but there is no such thing as anything as 100+ octane fuel. Anything over 100 is simply additional additives (usually of a crap nature).

98 will only be usefull for those with high compression engines in the latest newest machines - I think 13.5:1 and higher compression.

Or a FIAT whose engine is designed around MON octane ratings, not RON.

[crazylittleshit]

Running on high octane does not make your bike go faster. So, dont waste your money.

yea it does you just don't push your bike hard enough to find out.

[TwoSeven]

Or a FIAT whose engine is designed around MON octane ratings, not RON.

A FIAT is designed ?

I had an 850 sports coupe in my yoof. Wouldnt have thought that had any design in it - was a mental car.

[speedpro]

In Wellington last weekend I had a choice of 91 or 98 and being the cheapskate I am I put 91 into the mighty Legnum(1800 GDI). It started OK at the gas station but just up the road after stopping for 10 minutes it didn't want to know. Finally got going and it ran fine till I got stopped going up the Mangaweka hill (115Kmh, 20 points, $80). Same starting problem. Same at Waiouru and in Auckland. It was only difficult to start when hot. I've topped it up with 96 and it's better but still partly a problem. The car ran fine, it just was/is harder to start.

Higher octane definitely made my turbo Cefiro run better and respond better to (lots of) throttle.

[James Deuce]

A FIAT is designed ?

I had an 850 sports coupe in my yoof. Wouldnt have thought that had any design in it - was a mental car.

I know! That's the great thing about them - a loosely organised gathering of semi-orbiting parts that still functions as a collective whole called: a car. Beyond all reason it has been the most reliable car I've owned. One reg/rec, a set of wheel bearings, and a cam belt, plus regular servicing for the 11 years I've owned it. The carb ices up when it is REALLY cold though.

[speedpro]

I had a 125. It was one of the most fun cars to drive I've ever owned. Awesome specification considering the age. Japs took a long time to get there.

[chickenfunkstar]

In Wellington last weekend I had a choice of 91 or 98 and being the cheapskate I am I put 91 into the mighty Legnum(1800 GDI). It started OK at the gas station but just up the road after stopping for 10 minutes it didn't want to know. Finally got going and it ran fine till I got stopped going up the Mangaweka hill (115Kmh, 20 points, $80). Same starting problem. Same at Waiouru and in Auckland. It was only difficult to start when hot. I've topped it up with 96 and it's better but still partly a problem. The car ran fine, it just was/is harder to start.

Higher octane definitely made my turbo Cefiro run better and respond better to (lots of) throttle.

GDI engines do run particualrly high comp.
I think its about 12:1

[zadok]

I ran with high octane BP Ultimate 98 for a while, but I didn't find it gave any better performance. Supposed to be better for the environment, so I was doing it more for that reason. The price for fuel got so high I thought about the performance on my hip pocket instead. Some bikes might benefit from it, but my didn't.

Marty :ride:

[Hitcher]

American ST owners whack on about MON and RON all the time. Endlessly. They don't seem to "get" that other parts of the world have proper units of measurement...

[Keeper]

if you have a race license you can buy barrels of race fuel from Shell directly, works out about 96 at pump prices, but you have to buy about 200L at once

[250learna]

In Wellington last weekend I had a choice of 91 or 98 and being the cheapskate I am I put 91 into the mighty Legnum(1800 GDI). It started OK at the gas station but just up the road after stopping for 10 minutes it didn't want to know. Finally got going and it ran fine till I got stopped going up the Mangaweka hill (115Kmh, 20 points, $80). Same starting problem. Same at Waiouru and in Auckland. It was only difficult to start when hot. I've topped it up with 96 and it's better but still partly a problem. The car ran fine, it just was/is harder to start.

Higher octane definitely made my turbo Cefiro run better and respond better to (lots of) throttle.

your car is probably made for jap fule 100 octane. They are tolerant to as low as 95, but anything less and your risking demage to your engine.
Its ok to use high octane fule in cars that run on 91, but cars made for high octane should never be filled up with low octane fule :nono:

[Mooch]

Last time I gassed up:
91 - $1.23
96 - $1.28
98 - $1.33
all -ish. Depends where you go, but only varies by a cent or so. Rarely have I seen 96 and 98 at the same price tho (can't actually remember..)

I've seen a couple of places sell 'Race gas' which is 'off AvGas' so the guy at the desk told me. It's about 106 @ $1.95.. and wouldn't make much difference.. but smells God like. Was thinking about filling up with that, then pop to Repco/Warehouse and buy some Octane boost. try to get 110 rated fuel.. and watch it blow up..

Does avgas still have lead in it ?. Would be no good for the "cats" in modern bikes ?

[Flyingpony]

Legnum(1800 GDI).
GDI's require 96 or ideally 98 as Mits dealer told me.
Running on 91 will damage the engine.

[vifferman]

I had a 125. It was one of the most fun cars to drive I've ever owned. Awesome specification considering the age. Japs took a long time to get there.
I had a 132, which was one of the most fun vehicles I've owned, despite being in shitty condition and having had 13 owners. Engine was brilliant.
Current Fiat (Punto 90 ELX), bought for #1 son, is very comfy and easy to drive, but is BOOOOOORRRRRIINNNNG! And from the service records the previous owner gave us, very unreliable. It's '97, and it's had a new radiator, clutch, gearbox parts, the ECu crapped out, the disks and drums have been replaced, all sorts of electrical bits, etc etc etc.

[Lou Girardin]

American ST owners whack on about MON and RON all the time. Endlessly. They don't seem to "get" that other parts of the world have proper units of measurement...

Don't we use the same system, a blend of MON and RON to give our 91 and 96?
AFAICR, our 91 is equivalent to US 87.

[speedpro]

GDI's require 96 or ideally 98 as Mits dealer told me.
Running on 91 will damage the engine.

I'd been thrashing a bit till I put the 91 in it so wouldn't expect any carbon to have been left. I've got fresh shocks on the back and managed to fade all 4 and get the brakes vibrating and not on the ABS either, thankfully that cleared up.The motor didn't pink or otherwise misbehave with the 91. It just got hard to start when hot. After much commuting in Auckland I did put 91 in it once before and it pinked it's head off unless I was real careful. Funnily enough it didn't get hard to start that time. The plugs aren't that old either, maybe 6 months. It did essentially the same mileage - 40mpg or 7L/100km with either gas though I was going a lot slower generally with the 91 (and family) in the car.

My 'opinion' is that this Legnum and the Cefiro ran better over 120kmh. The Cefiro definitely got better economy. Even up to 160+ it was still (as) good (as it got).

[Pixie]

I know! That's the great thing about them - a loosely organised gathering of semi-orbiting parts that still functions as a collective whole called: a car. Beyond all reason it has been the most reliable car I've owned. One reg/rec, a set of wheel bearings, and a cam belt, plus regular servicing for the 11 years I've owned it. The carb ices up when it is REALLY cold though.
Just like Italia :D

[Keeper]

Avgas is specially tested the whole way from the refinery to when it gets put in Aircraft to ensure it has no water content unlike normal fuel, your engine can cope with a small amount of water, but at high altitudes it freezes the lines in Aircraft and causes crashes,

Lead - > Billions of the stuff in Race fuel and AvGas - > don't honestlly know what this could do to your cat, but too much (i suppose if you ran your engine all day on leaded) might cause a lead build up on the valve stems off the top of my head.

[Blakamin]

my duc runs better on 91 than 98... the cbr was the otherway around :whocares:

fuel should have lead... lead was good... stoppped them putting all sortz of other shit in there...

btw... duc sat for a coupla weeks with bp fuel and then refused to start without fouling plugs.... used mobil fuel and it started straight away after me being in Oz for a week.... and starts everytime now even on the coldest mornings....

DONT USE STALE FUEL..... and stay away from BP