Different Brands Of Fuel

[R33TOM]

I know this topic might have been covered before, try searching but cant find exactly what im after,

as you can see from the topic its about different brands of fuels,

I just purchased my R33 skyline not long ago, i noticed it runs quite horrible on Vortex98 fuel for some reason, that fuel isnt cheap either,

Ive filled it up with optimax and noticed immediately a big improvement, car now idles very smooth and more torque,

Is caltex fuel not up to par with Shell fuel? when i purchased the car originally it was running normal shell ULP, the car ran better with that than the vortex98 stuff,

could it possibly a bad batch,

what is everyones opinion on vortex98 and optimax?

[R33GTRVSPEC]

i've had no problems running vortex 98 or mobil 8000. neither seems better than the other. haven't tryed optimax or bp ultimate.

[Zoggy]

ive had problems using Vortex 98 , ... i just recently changed to optimax, big improvment

[Marsss]

optimax or ultimate... can't go wrong

[dune23]

Yeh im having the same problem with my s15. If i put normal caltex unleaded it runs very smooth but if i use vortex 98. some how it idles weird plus performance is not that great. some people has told me that it has something to do with the maf sensor. I tried cleaning it and it worked for a while.

[Kennedy]

Extreme is where it's at

[Wink]

I run Optimax, Vortex98 and Ultimate.

No problems at all.