optimax vs Premium

kawa zx12R · Post by **kawa zx12R** » Thu Dec 28, 2006 1:31 pm

Hi guys i was wondering what your opinion is on what the best for our bikes.

i was reading a thread on the TW forum and there was no distinctive response from kwaka rider.

its been said that shell optimax is no good...

I have a ZX12R... and mostly use caltex (as they are around the corner), but on some occasion i have filled up with optimax... (small country towns).

Can some one advice me whats good or bad.....?

javaman · Post by **javaman** » Thu Dec 28, 2006 1:49 pm

Optimax is no more

I've filled the bike few times with Shell '95' and is okay (carburated).

Smitty · Post by **Smitty** » Thu Dec 28, 2006 2:24 pm

Optimax is no more...sez Andi
its now VPOWER...wtf???

and its NO good in bikes with carbies
(well most Kawasakis with carbs)
Use Mobil or Caltex or Jet instead

me..???
I use anyones premium...BP or Caltex or Mobil
seem to be the go (coz they are the closest servos to home)

and I see no reason to pay around $1.40 for Shell VPOWER
when their 95 octane stuff is $1.28 and works just as well

oh btw...
if you really wanna go stupid..try VPOWER PLUS (racing)
only at selected Shell (read Coles) stores..at $1.49 litre

hth

Jonno · Post by **Jonno** » Thu Dec 28, 2006 2:51 pm

Smitty wrote:Optimax is no more...sez Andi
its now VPOWER...wtf???

and its NO good in bikes with carbies
(well most Kawasakis with carbs)
Use Mobil or Caltex or Jet instead

me..???
I use anyones premium...BP or Caltex or Mobil
seem to be the go (coz they are the closest servos to home)

and I see no reason to pay around $1.40 for Shell VPOWER
when their 95 octane stuff is $1.28 and works just as well

oh btw...
if you really wanna go stupid..try VPOWER PLUS (racing)
only at selected Shell (read Coles) stores..at $1.49 litre

hth

They apparently changed the blend for Vpower a fair bit, works great in the forbee.x four

$140 wtf, most i have paid here was buck20 therabouts, we do have no state taxes on fuel in Qld

deafwish · Post by **deafwish** » Thu Dec 28, 2006 2:54 pm

V Power Plus (100 RON octane) contains Ethanol and is not suitable for alot of vehicles.
Vpower has the lowest MON rating out of all the top 98 RON octane fuels. Due to the reality of this, I won't use it, as it can cause pinging (pinking/ knock) more-so than the other major 98RON fuels.
I stick with BP Ultimate and Mobil 8000. Haven't had any dyno time with Caltex's stuff.

Smitty · Post by **Smitty** » Thu Dec 28, 2006 3:44 pm

Jonno wrote:
$140 wtf, most i have paid here was buck20 therabouts, we do have no state taxes on fuel in Qld

fuel discount cycle ended here today...was about $1.29ish
earlier this week

oh...and
you guys in Qld have the state govt pay the excise ...worth
about 8-9c a litre

and thats the reason..ya hospitals are pharked

cheers

Jonno · Post by **Jonno** » Thu Dec 28, 2006 3:55 pm

Smitty wrote: and thats the reason..ya hospitals are pharked

cheers

Probably, that and no water. I hear vics hostibuls are as bad in management?

Anyway back on topic, I wouldn’t bother with 98ron on FI bikes, 95 is recommended and IMO makes no bit of difference running either.
I would try if I could to use either BP or Caltex. Remember some independents run shell through their bowsers and pays to ask first!

Smitty · Post by **Smitty** » Fri Dec 29, 2006 7:12 am

Jonno wrote:, I wouldn’t bother with 98ron on FI bikes, 95 is recommended and IMO makes no bit of difference running either.
I would try if I could to use either BP or Caltex. Remember some independents run shell through their bowsers and pays to ask first!

I agree
use anyones 95

BP Mobil or Caltex are all good
so is Jet...which use Mobil

hoffy · Post by **hoffy** » Fri Dec 29, 2006 7:35 am

I alternate between 95 and 98, no noticeable difference in running, although I would prefer to use 98 all the time its just sometimes the price is ludicrous.
I think 95 should be the minimum run through a high performance Jap bike.

I have never used optimax and dont intend to, BP Ultimate gives me the best seat of the pants dyno reading !!

Cath · Post by **Cath** » Fri Dec 29, 2006 1:04 pm

I only use 98, and only from Mobil or Caltex.

I might just fill up with 95 next time and see if I can spot any difference...

Blue14 · Post by **Blue14** » Sat Dec 30, 2006 9:50 pm

I use only mobil 8000 or bp ultimate. They are made by the same refinery and a different colour is added for bp or mobil.

Caltex do make a 98 now which i wont use. Only ever used 98 so dont know what the 95 is like.

Blue14 · Post by **Blue14** » Sat Dec 30, 2006 9:52 pm

Cath wrote:I only use 98, and only from Mobil or Caltex.

I might just fill up with 95 next time and see if I can spot any difference...

Changing fuels can take a few tanks to take affect as the computer has to set itself right with the different octane. So if you want to check you might have to use a couple of tanks and see what happens. Same as when you go back to 98 you will have the same situation.

BladeBoy · Post by **BladeBoy** » Sun Dec 31, 2006 5:37 am

blue12 wrote:
Cath wrote:I only use 98, and only from Mobil or Caltex.

I might just fill up with 95 next time and see if I can spot any difference...
Changing fuels can take a few tanks to take affect as the computer has to set itself right with the different octane. So if you want to check you might have to use a couple of tanks and see what happens. Same as when you go back to 98 you will have the same situation.

Would it take that long

Neka79 · Post by **Neka79** » Sun Dec 31, 2006 12:17 pm

umm i run anything cept Optimax cos i cant be stuffed... as long as its not ethanol based.....

Benny · Post by **Benny** » Mon Jan 01, 2007 2:38 pm

My mates dad said I should try octane booster and gave me a bottle. I only ride a z750 and i dont know a terrible lot about my bike, should I give it a go? or is it not meant for my bike?