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Subju

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vr304

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91 octane fuel that we get in this part of the world (not the US they have a different octane rating system) has no place in a performance car like an HSV mate, personally I’d run 98 but perhaps 95 would give you best value for dollar if your car is still stock
 

Subju

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Forg

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I hate the feel of a car where you've gotten used to running it on PULP, and then you drive it on ULP. It feels broken; it's amazing how quickly you get used to the embiggened throttle-response, and the slightly lower throttle pressure required. Even our (archaic engine-management) Ecomoo VS felt like I was lugging an extra 4 of me around in it when it was running on 91.
I couldn't tell any difference between 95 & 98.
 

Derekthetree

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pure dollar for distance travelled LS3

If you want pure dollar for distance travelled, don't buy a V8. Buy a hybrid.

I see zero point in spending money on a car like that, to then stick cheap fuel in to save cents.

embiggened

Excellent Simpsons reference. A most cromulent word
 

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Subju

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greenacc

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In a normal car 91 will definitely be the best value. Make sure you fill up when the price is down or you will lose out by a mile. The car feels better with 95 or 98 though.
e10 chews through more fuel so that's always last choice.
 

Derekthetree

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Those videos from engineering explained seem to clearly show that its definitely better to use 91 if you are talking value for dollar. Even with a 4% increase in fuel efficiency for 98, even 95 prices don't justify using it from value for dollar.

bear in mind EE are based in the US, and "91" is premium there, "87" is standard/cheapo stuff.

I've said this many times now, I like driving it hard, very hard. I just drive it efficiently most of the time.

Fuel price is cents in the dollar. If you go that hard, you'll wipe out any savings ;)
 

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