What brand fuel do you use in your Euro?

[nexace]

Isn't BP linked with IGA or something? I don't like IGA... Overpriced.....

Yeap but not all IGA's give you the 4c discount coupon

And it's even more frustrating when it happens at the local store...and there's a BP just down the road from it with Ultimate.

[aaronx88]

Anyone has an opinion on the new Shell Extreme 100Ron with 5% ethanol? It is only available in limited servo.

[BiLL|z0r]

yer, it's a rip off.

[aaronng]

We only need 95 octane. With the 98 octanes here in australia, they were formulated to be of higher density, so they give better mileage. But the 100 octane I suspect is a 98 octane with 5% added ethanol. The ethanol gives 2 points extra octane to make 100. It should therefore be cheaper to produce than Optimax 98 octane.

[Euro Ricko]

At first i will be putting Vortech 95ron in mine, as it supported 245rwkw in my Commodore without a trace of knock, so it should be pretty good for the Euro i reckon.

[Ferrarista]

I made the switch from BP Ultimate to Shell Optimax for the same reason too. Heaps of dockets (some 8c instead of 4c) and the rising prices.

However, since making the switch, I actually think the car runs a little smoother on Optimax than it does on Ultimate. It just seems really smooth.

This is an argument ive said over and over on this site, the car runs smoother on BP Ultimate..i love it and i was a massive Shell fanboy due to their Ferrari connection but ive since seen the light.

[V205]

How about mileage? WHich is prolly hte most important factor?

This is an argument ive said over and over on this site, the car runs smoother on BP Ultimate..i love it and i was a massive Shell fanboy due to their Ferrari connection but ive since seen the light.

[aaronng]

How about mileage? WHich is prolly hte most important factor?

The most important is the amount of throttle you give and the amount of load that the engine is having.

The gear you are in and the RPM just changes the amount of load and throttle.

[V205]

Fair comment, but the objective is to quantify the value of the fuel.

The most important is the amount of throttle you give and the amount of load that the engine is having.

The gear you are in and the RPM just changes the amount of load and throttle.

[aaronng]

Fair comment, but the objective is to quantify the value of the fuel.

If just on the fuel side, then it would have to be the amount of energy that the fuel can give you for a fixed amount. Since Optimax and a few other 98 octanes are supposedly higher density, they should give you more energy per unit weight and so you need less of it to reach your desired speed.