What petrol should I use?

rockylizard · Guru

What petrol should I use?

Vic41 · Guru

Good link John, thanks for sharing. smile

rosa · Senior Member

great info thanks Johm

Bryan · Guru

Thanks John

Glenelg · Guru

rosa wrote:
great info thanks Johm

sorry Rosa. had to pick it up . you have a new name Johm couldn't help it, i know it's the next letter.

back on course great info Johm.

Aus-Kiwi · Guru

Keep in mind E10 has octane rating of 94 .. I have supercharged and turbo engined cars..
I run E10 one week and 95 or 98 next fill .. Two WRX's, Twin turbo V8 I built and the new Falcon GT which is supercharged and unmolested..
They all have knock sensors, fuel lines capable of handling ethanol..
Seems the Euro cars have had issues.. If Jap or late model E10 is fine..
When you have issues is IF there's water in the bottom of your tank as ethanol [methylated spirits] mixes with water and contaminates filters etc..
Another .. Ethanol is a cleaner and takes varnish off the fuel lines which had run straight fuel for years..
The issue is when using E10 after a long period using straight fuel..
Which is why I use E10 as a top up.. I would NOT use it in outboards or small engines such as generators..
Especially where ethanol fuel absorb water over time.. Generator fuel can be stored for some time..

rockylizard · Guru

Gday...

Land Rover state not to use E10 diesel in my Discovery - however, I can use E5 diesel if nothing else is available - but only for that fill and then fill up gain with "ordinary" diesel as soon as possible.

Cheers - John

Aus-Kiwi · Guru

Ahh My comments have nothing to do with diesels..

Jaahn · Guru

Hi smile

Good to get the information out there.

However Aus-Kiwi, from my information not all E10 has a 94 octane rating. Depends on the supplier. Some blend with lower quality fuel to get just 91. I have a list somewhere that had, at that time all the octane ratings of all the brands sold. Otherwise good advice. aww

I have a European car which needs 95. However it is not happy with all types of fuel. Some brands cause faults to appear regularly. Some cause hard starting also in the cold. Must be time for a new one confuse Also from long experience there are some service stations which sell "bad" fuel and this may need even a tank clean. Had to do it twice in the last few years.

Jaahn

exa41 · Guru

Hi Oz-Kiwi .Yep Aussie fuel is basically crap , I could be wrong but I don`t think you can get 91 in Europe or Japan , I have a turbo Japanese car and I won`t run on anything other than 98 ,brings on the check light and usually corrupts the oxygen sensor .

03_troopy · Guru

Aus-Kiwi wrote:
Keep in mind E10 has octane rating of 94 .. I have supercharged and turbo engined cars..
I run E10 one week and 95 or 98 next fill .. Two WRX's, Twin turbo V8 I built and the new Falcon GT which is supercharged and unmolested..
They all have knock sensors, fuel lines capable of handling ethanol..
Seems the Euro cars have had issues.. If Jap or late model E10 is fine..
When you have issues is IF there's water in the bottom of your tank as ethanol [methylated spirits] mixes with water and contaminates filters etc..
Another .. Ethanol is a cleaner and takes varnish off the fuel lines which had run straight fuel for years..
The issue is when using E10 after a long period using straight fuel..
Which is why I use E10 as a top up.. I would NOT use it in outboards or small engines such as generators..
Especially where ethanol fuel absorb water over time.. Generator fuel can be stored for some time..

Just out of curiosity, if ethanol (or methylated spirits.. ethanol with additives) is hygroscopic, wouldn't it mix with the water and allow it, to therefore mix with the fuel? Only asking because back in the old days....... If you happen to cop a bad batch of fuel with water in it, the common thing to do was drain the fuel from the tank, pour in a bottle of metho, then fill the tank with fresh fuel so that any remaining water was absorbed into the fuel.

Aus-Kiwi · Guru

03_troopy wrote:
Aus-Kiwi wrote:
Keep in mind E10 has octane rating of 94 .. I have supercharged and turbo engined cars..
I run E10 one week and 95 or 98 next fill .. Two WRX's, Twin turbo V8 I built and the new Falcon GT which is supercharged and unmolested..
They all have knock sensors, fuel lines capable of handling ethanol..
Seems the Euro cars have had issues.. If Jap or late model E10 is fine..
When you have issues is IF there's water in the bottom of your tank as ethanol [methylated spirits] mixes with water and contaminates filters etc..
Another .. Ethanol is a cleaner and takes varnish off the fuel lines which had run straight fuel for years..
The issue is when using E10 after a long period using straight fuel..
Which is why I use E10 as a top up.. I would NOT use it in outboards or small engines such as generators..
Especially where ethanol fuel absorb water over time.. Generator fuel can be stored for some time..
Just out of curiosity, if ethanol (or methylated spirits.. ethanol with additives) is hygroscopic, wouldn't it mix with the water and allow it, to therefore mix with the fuel? Only asking because back in the old days....... If you happen to cop a bad batch of fuel with water in it, the common thing to do was drain the fuel from the tank, pour in a bottle of metho, then fill the tank with fresh fuel so that any remaining water was absorbed into the fuel.

Exactly...We use to put a generous half a cup in carb engines to clear any water in tank..

BTW I often run E10 is my Jap spec STI WRX engine..Had NO issues at all with 02 sensors .. Infact it cleans chambers etc..

On Euro cars as said the ECU / EPA side of things is often tighter and leaner.. The 05 Zetec Ford Focus is another that doesn't like E10..Which is Euro tuned..

Ethanol fuels go better under load, Cold starts and idling around is not there best on older engines..

Car companies are catching up..

Most issues with 02 sensors are leaded fuels..I have a race car that runs E85 and runs wide band 02 sensor all the time with no issues..

We are going to have to use this fuel in the future . Plus I would rather our money go to OUR farmers etc rather than some sheike in another country..

johnq · Guru

Someone mentioned diesel. It seems that Caxtex Vortex diesel may be a bit better, cleaner burn. Just a personal view and nothing scientific.