Whats the Best Fuel for VZ SSZ 5.7L

[Gunzero]

All i want to know is whats best for the motor reliability wise
(91) Unleaded
or
(95) E10 ethanol
or
(98) Premium Unleaded

 

[Lumps of cheese]

Is it tuned or stock?
I was running 95 on stock, then switched to 98 after tune.

 

[Benboy]

Use whatever is recommended by Holden. I believe that by using 95/98 octane it will keep your fuel and combustion systems much cleaner. I also find that the engine stays a lot cleaner over the 5,000 km between changes. Some people claim improved fuel economy although that's not my experience.

 

[wikky]

No need to use 98 if your car isn't tuned for it. 95 will be fine.

 

[a1k3m1]

i would keep away from that E10 stuff dude, completely destroyed 2 engines in cars at work..

 

[Vt_vic]

in the ss its not that much of a difference but in my corola i get around 100-150 k's more per tank going 98 over 91

 

[VzVzVz]

Would'nt be using e10, but I used to. Go with 95 on most occasions, but run a tank of 98 through about once a month. It'll stop any carbon buildup around the valves and keep it running efficiently.

 

[Happydaze]

e10 is no good, minimum 95
hand book has the min rating
which I think may be 91 but they
reccommend 95/96 for better performance.

I could be wrong, sounds like your on the
right track anyway

 

[Gunzero]

i think ill just run it on 98 to be safe any way the way i look at it is if you care about fuel consumption buy a rice burner

 

[VZ-Rob]

I know i've a 6 not an 8
I use Optimax 98
Caltex 98