Petrol/Fuel

[XR037]

I was just wondering if someone could explain the differences with the fuel available. I fill mine with 91 unleaded and thats amount all I really understand...

Can I use 95? 98? Are they interchangeable or do I have to stick to one?

Are there differences between Brands and if so which would you all recommend?

Also, how is Unleaded E10 different? Can this be used if I was just running normal 91 unleaded?

Thanks for the explanations

[jpd80]

Start here with a quick skim and then go back in depth...LINK

I'm sure others will add plenty on 91-95-98 ULP as well as E10 but if you have a standard NA car,
you'll get the best economy with around 95 as it has slightly more bang for bucks but you pay a little more for it.

[Silver Ghia]

Originally Posted by XR037

I was just wondering if someone could explain the differences with the fuel available. I fill mine with 91 unleaded and thats amount all I really understand...

Can I use 95? 98? Are they interchangeable or do I have to stick to one?

Are there differences between Brands and if so which would you all recommend?

Also, how is Unleaded E10 different? Can this be used if I was just running normal 91 unleaded?

Thanks for the explanations

For the BA I found that Shell 91 octane gave just as good performance and economy as 95 or 98 octane, so I used that all the time in the BA1 Ghia, with the Coles vouchers which made it cheaper again.

The FG is quite different, there is a noticeable performance improvement when using 98 octane (I only use BP Ultimate) compared to 95, I've never used 91 octane in it.

I would never use E10.

[XR037]

Yeh I've heard that BP Ultimate seems to be the best. So I can have a combination of the 3 in my tank?...as in if i had 91 in there now, there would obviously be some fuel left when I went to re-fill and I put in 98 instead. Theres no harm switching between them?

What about Caltex/Woolworths?

[Jack960]

Nah mixing unleaded petrol is fine. Most people recommend BP 95 or 98.

[mytoolsupplies]

E10 is a mix of petrol and ethanol ,normaly at a ratio of 10% ethanol ,I personaly would not use it

[aussie muscle]

Originally Posted by XR037

Theres no harm switching between them?

from what i've heard, mixing them is a good idea if you regularly use low end fuels as the higher octane fuel will clean out the system after using a tank of 91 or e10.

[XR037]

Originally Posted by mytoolsupplies

E10 is a mix of petrol and ethanol ,normaly at a ratio of 10% ethanol ,I personaly would not use it

But how is this different to 91, as in how does the 10% ethanol affect the car?

[XR037]

Originally Posted by aussie muscle

from what i've heard, mixing them is a good idea if you regularly use low end fuels as the higher octane fuel will clean out the system after using a tank of 91 or e10.

Cool thanks mate. Just wanted to make sure coz i think i might change to 95 or 98 if its better (just had no idea what they were before lol)

[rjr]

The best way to clean out your fuel system is to use a few tanks of Caltex Vortex as the Vortex component is a cleaning agent.

Vortex Premium Fuels

Designed to Clean.

It's no secret that the wrong choice of fuel may damage your vehicle. A build up of carbon deposits adversely affects injector spray patterns. The result: the ability to deliver fuel during the combustion cycle is hampered - causing loss of power.

Dirty intake valves may further reduce the efficiency of the fuel-air flow and an engine's performance. Your car will feel sluggish and fuel efficiency will be reduced. That's why vehicle manufacturers often recommend premium fuels.

Caltex Vortex Premium Fuels have been specifically formulated with special detergents to clean your car's fuel system while you drive - breaking down and removing deposits that build up in critical areas of the fuel delivery system.

Used regularly, Vortex Premium Fuels will ensure your engine continues to run at its best.

http://www.caltex.com.au/ProductsAnd...miumFuels.aspx