![]() |
|
Welcome to the Australian Ford Forums forum. You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today! If you have any problems with the registration process or your account login, please contact us. Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated. |
|
The Pub For General Automotive Related Talk |
![]() |
|
Thread Tools | Display Modes |
|
![]() |
#1 | ||
FF.Com.Au Hardcore
Join Date: Feb 2007
Location: Collingwood Park, (S.W.Qld)
Posts: 641
|
In Saturday's "Courier Mail" motoring advice column "Ask Smithy" the bloke who writes the column claims that
".....we were let in on a little secret and that is that the regular unleaded we are buying is no different to the premium on sale. It seems it's more economical for oil companies to produce one type of fuel instead of two. What they do is guarantee the octane rating of the fuel they produce, in the case of regular unleaded that's 91, whereas premium is a minimum of 95. They don't talk about the maximum octane rating. In that case we are wasting our money buying premium when regular is the same fuel. That was last week, what they do this week is anyone's guess. Why do we pay more for premium? Simple, clever marketing" Is this for real guys?? Cheers Ed |
||
![]() |
![]() ![]() |
![]() |
#2 | ||
Rob
Join Date: Sep 2006
Location: Woodcroft S.A.
Posts: 21,488
|
no its not. try running a car designed for 98 on regular 91. it won't like it. it will ping.
i have a modified v8 running aftermarket ecu. it is tuned for 98. if i run anything other than that, it will ping its head off. the premium is definitely higher octane. fuel companies will always be the subject of conspiracy theorists. |
||
![]() |
![]() ![]() |
![]() |
#3 | ||
FF.Com.Au Hardcore
Join Date: Feb 2007
Location: Cattai, Sydney
Posts: 7,701
|
I hope so because it's going to save me $10-20 a week on fuel since the ED is tuned for 98. I did stick 95 in it once when i couldn't find 98. It had no pinging at all and still made 148rwkw (Got the fuel the same day as the dyno comp)
__________________
1992 EBII Fairmont Ghia 4.0l <---Click for the Gallery! Insta@mooneye_ghia White on bright red smoothies with thick whitewalls. Cruising around to some rockabilly |
||
![]() |
![]() ![]() |
![]() |
#4 | ||
FF.Com.Au Hardcore
Join Date: Dec 2004
Posts: 12,077
|
Why do they charge more?
Because they can, we want it and will pay because we want it....... I would be EXTREMELY surprised if the manufacturing cost of any of the mainstream petrols was higer than the others. Why do stripes and bulge decals cost $1,000 on a new GT? |
||
![]() |
![]() ![]() |
![]() |
#5 | |||
Rob
Join Date: Sep 2006
Location: Woodcroft S.A.
Posts: 21,488
|
Quote:
|
|||
![]() |
![]() ![]() |
![]() |
#6 | ||
doof doof doof doof
Join Date: Jan 2005
Location: SE Melbourne
Posts: 611
|
i read this in the herald sun cars guide the other week, and i really dispute it. my ute roared through the 91 octane stuff (i swear i could watch the fuel guage drop) and ran like a pig. premium was always perfect. well as perfect as could be in a pig headed cranky engine.
![]()
__________________
![]() |
||
![]() |
![]() ![]() |
![]() |
#7 | |||
FF.Com.Au Hardcore
Join Date: Dec 2004
Posts: 12,077
|
Quote:
Petrol is a mixture of lots of stuff including from aboute butane throught to past decane. Depending on where it came from there is often lots of heptane and trimethylpentane (aka iso-octane). There are a squillion articles on the web about it if you need more info. I think we have a industrial chemist who works with this stuff (and likes towing things ![]() |
|||
![]() |
![]() ![]() |
![]() |
#8 | ||
King of the Fairy's.
Join Date: Jan 2007
Location: CeeeeeTown.
Posts: 5,093
|
Fuel with degrade over time and loose its octane, legally they have to ensure that what they are selling as 91 is at a minimum of 91 by the end of its shelf life (so however often they refill the tank). So your fresh fuel should be of a higher octane then the fuel thats been sitting there in the ground for a week. May even be one of the reasons fuel prices vary.
^This is all just theory, whether this is how they practice or not I can't say. Try getting 'Regular' Unleaded anyway. Im forced to put Premium in the Carby cars I have because everything is E10.
__________________
|
||
![]() |
![]() ![]() |
![]() |
#9 | ||
FF.Com.Au Hardcore
Join Date: Dec 2004
Location: Central Q..10kms west of Rocky...
Posts: 8,307
|
Then throw in the E10 which isn't good for cars or your wallet, despite what the Government says. We are ripped of and no-one will or can do anything about it. In Captain Bligh land,she is making E10 mandatory from December.No more 91. So, you will have to buy E10 ,which uses more to run your car and car loses mpg. You are being forced to use 95 or 98 ,which costs more. Collosion with Bligh and the oil companies???
I was in America last month and paid 80caus a litre.!!! Yes, we are ripped off and we are expected to accept it !!!!
__________________
CSGhia |
||
![]() |
![]() ![]() |
![]() |
#10 | ||
Regular Member
Join Date: Jun 2007
Location: SA Parafeild Gardens
Posts: 101
|
haha, i love this debate about price and being ripped off.. look at the government for the price in australia. they tax it twice. as for the 91 to 98 comparison, 98 does run niceer and last longer in my car - magna v6 ftw :P
__________________
On the hunt for a xw/xy sedan anything to convert into my cruiser :hrod |
||
![]() |
![]() ![]() |
![]() |
#11 | ||
Irregular member
Join Date: Dec 2004
Location: Melbourne
Posts: 3,941
|
Every metro / suburban stattion I've ever been has sold what they advertise, as my car will ping under high load on fuel that is less than 98 octane due to the tune.
But in the country and rural areas, it seems that some stations are doing what the writer suggests. I've experienced a few times where I've driven away from the stations after getting 98 octane only to find that the car's pinging like it's 95. Edit: I complained to the parent company (BP) and they said it's up to the individual franchiser to be responsible for any false advertising. They offered to send a lab tester out there and bill me for it if there was found to be no issue, so I declined. However, that could have been the fuel ageing issue, as mentioned by Airmon.
__________________
2000 AU II FAIRLANE 75th ANNIVERSARY - big and shiny My hovercraft is full of eels! Movie Car Chase of the Week: Gene Hackman driving a 1971 Pontiac LeMans to chase an elevated train in The French Connection (1971). |
||
![]() |
![]() ![]() |
![]() |
#12 | ||
GT
Join Date: Apr 2005
Location: SYDNEY
Posts: 9,205
|
i dont want to get into this debate , as i think too many people will just make up an opinion , and then pretend they are right .
my FGXR6 runs excellent on E10 . i did put 98 in it once and got less economy , and only mininimally noticed more power , if at all . the gt asks for 98 so thats what it gets. |
||
![]() |
![]() ![]() |
![]() |
#13 | ||
4dlvr
Join Date: May 2006
Location: tulla
Posts: 327
|
guys let me clarify some bs. regular(91) will have a minimum rating of 91...
and premium(95) will have a minimum rating of 95.. thats all you need to no. but for those who need to no more here are some facts regarding only major petrol station companies. both regular and premium produced identically with the same initial which is 95+. the difference is premium will reach the petrol station sooner and as octane in petrol looses its concentration or deteriorates over time, 91+ may slightly go a tini bit. and 95 does infact have more fuel cleaner additives then 91.. so although the octane difference in octane levels will be minimal, you are getting your moneys worth.
__________________
96 EF FAIRMONT Garrett gt40 turbo , iceman plenum, head ported, polished and balanced, wade turbo cam, wade double valve springs, bosch 023 fuel pump, 36lb injectors high flow cat, 4' dump and 2.5' redback exhaust. 215rwkw @7psi |
||
![]() |
![]() ![]() |
![]() |
#14 | ||
Luxojet
Join Date: Oct 2005
Location: Adelaide
Posts: 1,883
|
My G6E turbo runs perfectly fine on 91. Use it most of the time.
At the moment I'm trying premiumax (100) from liberty and still the same. I went to get Ultimate (98) today but the price has gone up 20c compared to yesterday. Don't you love the price cycle!?
__________________
Rides: -Toyota Blade Master G. -Ford G6ET (that will be for sale) |
||
![]() |
![]() ![]() |
![]() |
#15 | |||
FF.Com.Au Hardcore
Join Date: Nov 2006
Posts: 1,457
|
Quote:
The cycle is almost identicle, week in week out. Just learn when the cheaper days are. |
|||
![]() |
![]() ![]() |
![]() |
#16 | |||
Former BTIKD
![]() Join Date: Mar 2005
Location: Sunny Downtown Wagga Wagga. NSW.
Posts: 53,197
|
Quote:
__________________
Dying at your job is natures way of saying that you're in the wrong line of work.
|
|||
![]() |
![]() ![]() |
![]() |
#17 | ||
No Boundries
Join Date: Dec 2005
Location: Under A Car Somewhere
Posts: 809
|
Ask Smithy the blokes a tool who relys on everone else to solve problems then claims victory himself. Of course there is a difference ask anyone who drives a LS focus they ping like hell on regular. The guy has no idea.
__________________
FG XR6T Nitro, 6 Speed ZF, Tech & Safety Packs, Leather & Premium Sound. |
||
![]() |
![]() ![]() |
![]() |
#18 | |||
IWCMOGTVM Club Supporter
Join Date: Sep 2005
Location: Northern Suburbs Melbourne
Posts: 17,798
|
Quote:
__________________
Daniel |
|||
![]() |
![]() ![]() |
![]() |
#19 | |||
Force Fed Fords
Join Date: Aug 2005
Location: Enroute
Posts: 4,050
|
I know why it's more expensive; they get a volume discount on the red dye as opposed to the yellow dye in the premium.
Seriously though, I ran E10 in the G6 and it ran like poo. Even dropped idle a few times at lights. Put premium back in it and all good.
__________________
If brains were gasoline, you wouldn't have enough to power an ants go-cart a half a lap around a Cheerio - Ron Shirley Quote:
|
|||
![]() |
![]() ![]() |
![]() |
#20 | ||
Performance moderator
![]() Join Date: Feb 2005
Location: St Clair..N.S.W
Posts: 14,875
|
E10, can run alittle rough with no load and light cruze..
I mix my fuels on my turbo cars.. Buy depending on pump prices... On interstate driving I find there's sweet all difference with E10 in the way the engine behaves.. But there's no loss of power..
__________________
Real cars are not driven by front wheels,real cars lift them!!... BABYS ARE BOTTLE FED, REAL MEN GET BLOWN. Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic! Dart 330ci block turbo black pearl EBXR8 482 rwkw.. Daily driver GTE FG.. Projects http://www.fordforums.com.au/showthread.php?t=107711 http://www.fordforums.com.au/showthr...8+turbo&page=4 |
||
![]() |
![]() ![]() |
![]() |
#21 | ||
71Mach1
Join Date: Feb 2007
Location: Melb
Posts: 465
|
guys, has anyone tried those octane pills you chuck in the tank ...
do they make a discernible difference? or more snake oil...
__________________
roses are #FF0000 violets are #0000FF all my base are belong to you |
||
![]() |
![]() ![]() |
![]() |
#22 | |||
Previously ScottishXC
Join Date: Jun 2005
Location: Sydney
Posts: 2,100
|
I run E10 in my G6 all the time and have racked up 60+k this year with not one issue at all.
My older V8's have always used BP 98 / Shell 100 RON (no noticeable gain) or Mobil 98. Anything less than this and pinging is a real issue unless i add an octane booster. Most modern cars (G6) are designed to run perfectly well on E10 and I have never had an issue with E10 or any 91 RON fuel in any of my new cars (5 in the last 5 years) Really interesting to know that the octane deteriorates over time- good info!
__________________
Great transactions with the following members: BJ Gilesie XAGTCoupe Pilch Aussie_afroman Donut King Bad Boy Benny BAWITHLOT Greenmachine Pinkbits CUZ351 OhioXB Falconunbelievable 4VXC Uncleraggy FG G6 Ego, tech pack, Tropic gold 1973 Landau, Cosmic blue 1975 P5 LTD....long term project Quote:
|
|||
![]() |
![]() ![]() |
![]() |
#23 | |||
IWCMOGTVM Club Supporter
Join Date: Sep 2005
Location: Northern Suburbs Melbourne
Posts: 17,798
|
Quote:
Mind you don't get what the E10 bashing has to do with premium fuels.
__________________
Daniel |
|||
![]() |
![]() ![]() |
![]() |
#24 | ||||
Force Fed Fords
Join Date: Aug 2005
Location: Enroute
Posts: 4,050
|
Quote:
__________________
If brains were gasoline, you wouldn't have enough to power an ants go-cart a half a lap around a Cheerio - Ron Shirley Quote:
|
||||
![]() |
![]() ![]() |
![]() |
#25 | |||
VFII SS UTE
Join Date: Apr 2007
Location: Central Coast
Posts: 6,353
|
Quote:
yes they do work provided they are made of naptholene..
__________________
I don't often hear the sound of a screaming LSX. But when I do, So do the neighbours.. GO SOUTHS
|
|||
![]() |
![]() ![]() |
![]() |
#26 | |||
FF.Com.Au Hardcore
Join Date: Feb 2005
Location: Melb north
Posts: 12,025
|
Quote:
![]() |
|||
![]() |
![]() ![]() |
![]() |
#27 | ||
Where to next??
Join Date: Oct 2006
Location: Sydney
Posts: 8,893
|
I think the only time a servo sells 91RON with the same / similar RON as premium is when the guy pumping the stuff into the underground tanks makes a mistake.
I have owned several vehicles over the last few years that ran on various fuel grades and putting in lower than recommended often resulted in a noticeable drop in performance and economy. |
||
![]() |
![]() ![]() |
![]() |
#28 | ||
FF.Com.Au Hardcore
Join Date: Dec 2004
Posts: 12,077
|
I read somewhere that if you are running E10 in a high performance vehicle something must be retarded.
Surely something to do with the engine........of course.. ![]() |
||
![]() |
![]() ![]() |
![]() |
#29 | ||
Performance moderator
![]() Join Date: Feb 2005
Location: St Clair..N.S.W
Posts: 14,875
|
E10 can take more timing in my case..
Ethanol is added to high octane along with other additives...
__________________
Real cars are not driven by front wheels,real cars lift them!!... BABYS ARE BOTTLE FED, REAL MEN GET BLOWN. Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic! Dart 330ci block turbo black pearl EBXR8 482 rwkw.. Daily driver GTE FG.. Projects http://www.fordforums.com.au/showthread.php?t=107711 http://www.fordforums.com.au/showthr...8+turbo&page=4 |
||
![]() |
![]() ![]() |
![]() |
#30 | |||
Regular Member
Join Date: Jun 2010
Location: WA
Posts: 308
|
Interesting about fuel loosing its octane rating over time.
Just how quick does it happen? Are we talking a couple of points per week or is it quicker/slower than that? Would it mean that if a car requiring 98 only does low kms you'd be better off doing regular 1/2 or 1/4 tank fills, rather than complete fills every 2-3 weeks?
__________________
Reality is an illusion caused by an excess of blood in the alcohol stream! Quote:
|
|||
![]() |
![]() ![]() |