This Hyundai link says to use Premium Leaded in my 2012 petrol Imax (the Iload is the commercial version).

http://www.carshowroom.com.au/newcars/2012/Hyundai/iMAX/O6B12H 

I also read somewhere that using Premium Unleaded (95 Octane) would give more kms per litre than normal Unleaded (91 Octane) and also more power, and the Imax was tuned for 95 Octane.

A Dealer also stated that I should use Premium (95) also.

However when I rang the RAC Tech Department they said they had nothing that said these were to be run on 95 Octane and 91 should be fine.   I saw a tradie in a carpark one day with a fully loaded Iload and he said the dealer he brought his off said to use ordinary unleaded (91 Octane).

During a recent country trip I refuelled with standard unleaded (91 octane) as 95 octane was not available at some town servo's).

Also bear in mind that there is a huge cost difference in the price of 91 and 95 (and even more for 98 octane).

Using both 91 and 95 I can't really notice any stand out difference in performance or fuel used, so am wondering what the hell!

Anyone got a view on this?     

Why not run a 10% ethanol blend, save money and get a little extra boost.
Shell is 94Ron and United is 95Ron.
Don't know about the other brands, but the servo operator should (Ha Ha) know.
OJ

Thanks Doug, Ozjohn and Larry.  Food for thought.

I was also told that 98 was overkill and a wast of money (the most expensive too) so have avoided that.

Not sure if I could hear any pinging as my hearing is not the best, flat out hearing the blinkers (wish they would make them with volume control so you could make them louder! LOL)

Vic41 wrote:

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Thanks Doug, Ozjohn and Larry.  Food for thought.

I was also told that 98 was overkill and a wast of money (the most expensive too) so have avoided that.

Not sure if I could hear any pinging as my hearing is not the best, flat out hearing the blinkers (wish they would make them with volume control so you could make them louder! LOL)

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Very unlikely to hear pinging with fuel so close ie 95 and 91 especially with auto trans, which I assume it is. 

Baz421 wrote:

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Vic41 wrote:

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Thanks Doug, Ozjohn and Larry.  Food for thought.

I was also told that 98 was overkill and a wast of money (the most expensive too) so have avoided that.

Not sure if I could hear any pinging as my hearing is not the best, flat out hearing the blinkers (wish they would make them with volume control so you could make them louder! LOL)

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Very unlikely to hear pinging with fuel so close ie 95 and 91 especially with auto trans, which I assume it is. 

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 Thanks Baz, yes it is auto...

Vic41 you could fit a beeper to your blinkers if you can't here them.

Lance C

Thanks Lance, I'm just about beepered out, I have reversing sensor audible beeper (for objects) and outside audible reversing beeper (warning to others I am reversing), but worth a thought as I would be driving so a bit different to reversing....

You will not hear 'pinging' in any modern engine - most are fitted with "knock sensors" which detect pinging and instantly retard the ignition etc to stop the pinging.
The imax is designed to run on 91ron - not premium. Using premium will have no advantage and cost about 15c per litre more.

See this link:
http://www.redbook.com.au/cars/research/used/details/2013-hyundai-imax-tq-w-655896?R=655896&Silo=spec&Vertical=car&Ridx=1&eapi=2

Gday...

This is not Hyundai Imax specific, but is a very good description of the petrol 'types' available and their usage.

One would expect that your Owner's Manual should be helpful in providing advice on the 'type' of fuel to use in your particular vehicle. 

Perhaps the sticker under the fuel filler cap will be even more helpful.

http://www.caradvice.com.au/93272/what-fuel-should-i-use-in-my-car/

Cheers - John

This is the link from my first post on the thread that says Premium Unleaded Rocky, but I am getting mixed messages on the subject, see the specifications here;  http://www.carshowroom.com.au/newcars/2012/Hyundai/iMAX/O6B12H 

As I mentioned earlier not many small country servo's have Premium Unleaded so I have been using Standard Unleaded on my trips, topping up with Premium when able to.  

Thanks for the tip and the other link John, it is very interesting.

Update:  As suggested I looked inside my fuel lid and is just says simply "Unleaded Petrol" it give no indication as to what Octane, but I presume 91.   My car manual says 91 unleaded or higher (95 or 98) but not E10 with more than 10% Ethanol and none with Methanol mix.

As said earlier car dealer workshop told me it needed 95 Octane, but the RAC said 91 Octane.

I will still keep asking around but in the meantime will probably just use 91 with the occasional top up of 95 for good measure.

Thanks AK, nice to know!

hako wrote:

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You will not hear 'pinging' in any modern engine - most are fitted with "knock sensors" which detect pinging and instantly retard the ignition etc to stop the pinging.
The imax is designed to run on 91ron - not premium. Using premium will have no advantage and cost about 15c per litre more.

See this link:
http://www.redbook.com.au/cars/research/used/details/2013-hyundai-imax-tq-w-655896?R=655896&Silo=spec&Vertical=car&Ridx=1&eapi=2

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Thanks Denis, and apologies for not spotting it, I must have jumped a couple of posts.

RAC WA also use Red Book to give their opinion on fuel, they said 91 ULP also.  Mine is a 2012 model but I assume it would be the same.

This extract was from your link (for others info); 

Thanks Mate, that will save me some money!!! (very happy)  

PS:  Just checked the 2012 Model using the link you provided, is the same as the 2013, Thanks again, Vic

Note:  Part of the confusion is this link which says the same model uses Premium Unleaded fuel, see;

http://www.carshowroom.com.au/newcars/2012/Hyundai/iMAX/O6B12H 

 Just a final note.   Looking at the Hyundai Official Website, it just says the Imax auto 2.4 petrol uses petrol (fairly obvious I would have thought) but no mention of type of petrol or octane rating in their download specifications.

I rang Hyundai Head Office and they said just use what is in the vehicle manual, which is petrol 91 Octane or higher (ie; 95 or 98).  They also said ask your Hyundai dealer (well mine said Premium Unleaded, ie; 95) I told them this and also that the link shown at the bottom of my previous post says to use 95.  

They had no answer for this but to say just use what the vehicle manual says (91) and when asked if it would cause any damage to the engine said no.

Talk about mixed information from different sources!   So as far as I am concerned I will use 91, more available and lighter in the pocket... 

Aus-Kiwi wrote:

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91 is being phased out in nsw..replaced with E10

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So will 95 still be available?   And will E10 be safe to use in petrol engines designed for 91?

(in my case a 2012 Hyundai Imax)

Still around in WA, haven't heard any rumbles about it being phased out here yet.    

I told you so to get an Diesel van  Vic

Cheers John

Vic41 wrote:

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Aus-Kiwi wrote:

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91 is being phased out in nsw..replaced with E10

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So will 95 still be available?   And will E10 be safe to use in petrol engines designed for 91?

(in my case a 2012 Hyundai Imax)

Still around in WA, haven't heard any rumbles about it being phased out here yet.    

-- Edited by Vic41 on Saturday 19th of July 2014 10:06:48 PM

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Well you are in WA Vic. I've ducked my head so you can throw one,,lol 

Had my Transit diesel John......diesel ok but hated the manual 6 forward gears....

Ah Yes Baz.......WA......"Way Ahead" (not Wait Awhile like some believe!)  

Aus-Kiwi wrote:

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We run E10 in all our Ausgrid vehicles including IMax with no issues.. The fuel we use is Caltex.

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Thanks AK, do they need any change in tuning or are they self tuning for the E10???? 

Thanks AK!