CL9 - Filled fuel with mobil supreme 98

read somewhere on these forums that other CL9 owners get more kms out of their tank from Mobil Synergy.
So i decided to fill up @ 7/11 Mobil.. and unknown to me the Mobil Synergy was no longer available and had been unavailable for many years.. i didn't know this since I've never filled @ Mobil nor 7/11 due to always filling at BP (ultimate) & Shell (v power) in all the cars I've owned.

Anyway, i was already low in the tank with about 15km left and decided to fill the CL9 with Mobil Supreme 98 (red cap).

Has anyone had Good/Bad experience with Mobil Supreme 98?

My last tank got me 543km from 60L roughly 11L/100kms using BP Ultimate.

They're mostly the same. Since about 2 or 3 years ago australia no longer refine our own petrol so everything endup being imported.

I get about 11 to 11.5 per 100km in the city. On united E10 95 octane. 10.5 to 11 per 100km in th city with Vortex 95/98

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Originally Posted by CL9_euro

read somewhere on these forums that other CL9 owners get more kms out of their tank from Mobil Synergy.

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There are BP Ultimate fuel fan, and there are also Mobil Synergy fuel fan that will claim better kms. This could be true but I am sure the difference is marginal. As long as the car runs normally (smooth) there shouldn't be a problem with Mobil Synergy.
Car maintenance and driving habit will be a more predominant factor in how it affects fuel mileage rather than fuel brand.
I can see that you don't mind splurging a little to look after your car. This is good.

O.K. After a 25 year career in the oil industry (refining) please allow me to blow away the myths that I see written above.

Motor Gasoline is still refined (made) in W.A and Victoria.
Refinery's in S.A, QLD and NSW have closed. So some Petrol (Motor Gasoilne) is still made here.

What cannot be supplied by Australian Refinery's comes from refinery's in Singapore, India and Korea. These refinery's are owned by the major company's, Shell, BP, Exxon, Chevron, to name a few.

Exxon Mobil own the Refinery at Altona (Melbourne) but the company did get out of the retail trade, contracting it out to the 7-11 group.
Shell sold their one remaining Refinery at Geelong (Vic) to Swiss/Dutch consortium Viva, but their Retail Trade is contracted out to the Wesfarmers Group (Coles Express.) Some independents selling Shell products still exist, mainly in rural areas.
BP own the Refinery in W.A. and still has retail outlets around the country. It specialises in roadhouses on the major highways.
Caltex (Texaco) no longer refines products in this country but has remained in the retail trade.
United Fuels, Anderson Petroleum (APCO)and other larger and smaller independents, buy their gasoline from one of the major refiners.

Now the products coming out of the 3 remaining Australian refinery's, as well as from the overseas refinery's that make up the country's demand, are identical, simply because there is an International Standard that all company's adhere to.
To put it simply, 98 RON gasoline is 98 RON gasoline, 95 is 95 etc etc, no matter what name it is sold under. BP "Ultimate", Shell "V" Power, Caltex Vortex...!

91 and 95 RON gasoline contains some detergent additives, suspended in by upper cylinder lubricant. These additives differ slightly from company to company and are added at the distribution gantry.
98 RON , due to its highly acidic nature, does not contain any detergent. The raw gasoline components in 98 and also that gasoline's density, do differ vastly from those in 95 and 91. It's more dense (heavier)

91 RON also contains traces of Sulphur, 95 and 98 RON do not.

Irrespective of Octane Rating, there are 3 blends made for Australian Conditions. Winter, Summer and Autumn/Spring in the southern parts of the country and in the north, it's Summer blend, all year round.
The only difference in these blends is the amount of Propane/Butane injected into the mix at blending, which controls the fuels volatility according to the season.
More Propane/Butane is needed in Winter than Summer, as the fuel has to be more volatile to make cold starting more reliable. (Believe me, you don't want to have a tank of winter blend gasoline in your car on a 40C day. The cars engine will be plagued by vapour locks if you do! (: )

But in the bulk storage tanks in the refinery where the product was refined and blended, it's all the same. 91 RON, 95 RON or 98 RON.

So if you are purchasing Shell or Caltex or BP fuel in southern W.A, it will have come from the BP Refinery at Kwinana.
Similarly if you are buying from BP, Shell, Caltex or maybe from a 7-11 store, in Victoria, South Australia, Tasmania, or Southern NSW, it will have come from either the Exxon Mobil Refinery at Altona or Viva Refinery in Geelong.
It is when you are buying fuel in Northern WA, Queensland, NT or Central and Northern NSW, or if there is a shortage in one of the aforementioned southern states, it will have come in from Singapore, India or Korea.
However the product will be identical to same octane rated gasoline refined here in Australia.

So whether you put in Petrol from Shell or Caltex, if it's the same octane then it won't make an ounce of difference, except maybe for your wallet if the say Caltex stuff was 1 or 2 cents a litre cheaper.
The difference will come from using 95 RON or 98 RON over 91 RON, irrespective of the brand name.

In some cases it will be quite noticeable, depending on what the engine was tuned for initially by the manufacturer.
In other cases it will be negligible.
(Sometimes you will notice better performance by running your cars tyres at a higher pressure!)

My choice? Well I know what base gasolines are used in the different blends and some of it, although legal, is what I could only describe as "liquid excrement." My fellow workers used more colourful terms.
My family use 98 RON in their private cars, across the board, irrespective of the price difference. We have no brand preference, but try to support one of the independents where possible.

2 of my family also drive company owned cars. They use what the fleet manager specifies. (in one case it is LPG)

But.......using 98 RON is my personal choice. You make your own. (:

Thanks alot for the insight mate ^


good to see our QLD brothers are running on indian petrol lmao ;)

;) LMAO as well at your reply. Classic. :thumbsup:

Pwahhhh... Well said... It pees me so much when someone says too me 'why aren't you using shell or bp, why go to 7-11?' I've known for a long time that regardless of the brand the octane rating will be the same... Just the additives are little different.

That info was awesome! Thanks man!

shell 98 give me more push in car feel and longer kms drive

The Oil marketing game is a great example of Smoke and Mirrors in action. ;)

Who can remember some of the Petrol marketing lines of the 1970's and 80's?
Caltex's CX-3 (CX-3 was just a detergent additive) AMOCO'S "Nice Clean Petrol" (They inserted an extra filter in the rubber hose from the pump to the nozzle). Shell's "Penny the Penguin" (not sure what penguin's had to do with car petrol, then and now) and before that "ICA" (another detergent additive.) One company (I can't remember which) spouted on about their petrol containing Iso Pentane, which gave more power! (Iso Pentane is a light gasoline that is one of the raw materials that are blended together to make automotive gasoline and also aviation gasoline. So all gasoline has Iso Pentane in it anyway!!!....) Well, they were telling the truth......sort of.
Then Caltex's old advertising jingle.. "...I go for Caltex because its Butane Boosted..." (Another sort of truth. Remember what I posted on the 14th of May, about injecting Propane and Butane into the mix to achieve the required level of volatility for cold starting? Go figure....;) )

As for E-10 etc, just another ingredient, this one derived from Sugar Cane, added into the mix when "blending up a brew." (It keeps some sections of politics happy that they are helping to save the planet!)

The best smoke and mirror game though is refueling airliners.

Aviation kerosine is pumped via one pipe ( "line" in Oil Industry terms) to a bulk storage depot at the local main airport. For example I will use Tullamarine Airport in Melbourne. From that bulk storage depot, there is a network of smaller diameter underground lines going out like a spiders legs, to each parking gate and also to the air freight area and maintenance areas. When an aircraft requires refueling, a pump will be positioned and hoses fitted linking the aircraft's fueling points to the underground supply line. The pump can be in the form of a mobile truck, with a particular company's name emblazoned on the side, or just a cart or carts, with a pump mounted on on it. The oil company with the fuel supply contract to the particular airline that owns the aircraft to be refueled, will supply the pumping equipment and personnel to operate it. When the refueling is over, a hard copy print out with the actual amount of aviation kerosine pumped into that individual aircraft will be given to the oil company's billing department as well as to the airline. The oil company billing department will then calculate the amount owed and will send the bill to the airline. The actual product supplied, came from the bulk storage area that ALL company's with aircraft refueling contracts at that airport, draw from.

Now the line to Melbourne airport actually come from the Exxon Mobil Bulk Terminal which is between the suburbs of Altona and Spotswood. So no matter whether the aviation kerosine was refined and blended at the Viva Refinery in Geelong or the Mobil Refinery in Altona, it all has to go via the Exxon/Mobil Spotswood Bulk Terminal. ( There is a pipe line linking Geelong to both the Exxon Mobil and Shell Terminal, in Melbourne and another pipeline also links those terminals to Crib Point at Hastings.)

Much the same situation occurs with Automotive Gasoline. I will talk here about Victoria, because it still has Refinery's.

There are 4 major bulk terminals in Melbourne, owned by Exxon/Mobil, BP, Caltex and Shell in Spotswood and 1 in Geelong, next to the Viva Refinery. The pipelines from the Geelong Refinery, the Altona Refinery and Crib Point, all go to the Exxon Mobil Terminal and from there the product stream can be diverted to any of the other major Terminals by a network of underground pipes, like an underground railway line. Tankers belonging to the individual company will then draw product from their terminal for delivery to retail outlets and commercial customers such as the Railways etc. Any detergent additives are added at tanker filling time.

In Geelong, all tankers regardless of which company is retailing the fuel, will fill at the Viva Refinery Terminal. There is an individual tank for each major company that contains that company's specific additive near the filling gantry and that is opened up to the tanker at filling time and the required amount flows in.

Gasoline shipped to centres like Albury/Wodonga in railway tank cars, will have had those cars filled at either the Viva Refinery Terminal, the Exxon/Mobil Terminal or Crib Point Terminal.

Occasionally an oil tanker of refined product from overseas will also unload at Long Island, (in the Port of Melbourne,) at Crib Point, or the Tanker Jetty at the Viva Refinery in Geelong. That product is then stored in storage tanks nearby and blended into the distribution system as required.

The Long Island and Geelong Jetty's mostly receive Crude Oil from overseas or fill smaller tankers with refined product to supply Tasmania and South Australia, or transport to the northern states if demand requires.

In NSW, Tasmania, Queensland, S.A., Northern W.A. and the NT there are refined product depots near the major Ports and in the case of NSW, the old Clyde Shell Refinery site. Refined products will be distributed around from the receiving points via underground pipelines to terminals further inland, and then distribution will occur pretty much the same way as what I described happensin Melbourne.

In W.A, the main distribution point will be at the BP owned Refinery at Kwinana. All petrol in W.A, regardless of retailing company, will have been made at that Refinery.

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The biggest difference in refined products for our cars comes in the form of Lubricating Oils and Grease, all of which is now refined overseas and blended here. And that's a completely different and very complicated story which I won't get into.
Specifying which lube oils are the best is a bit like comparing wine and/or beer. Ditto for Grease, which I have yet to see a thread about ANYWHERE, but is equally important. (Put the wrong grease in your cars C/V joints and then see what happens...and very quickly.)

We each have our own taste and preferences and as long as, in the eyes of the user, it does the job, then that is the best for you.

Cheers guys :wave: