I have seen a Holden ute I really like and have confirmed it can run on 91 but runs better on 95. If I was to run it on 91, will it cause damage? And what will I notice in performance compared to running on 95?
intrade,
Nov 28, 11:12am
well depends if it was made for 91 octane only third world countrys even have 91 , japan and europe lowest octane is 95 octane. so cars are usually made for non 3th world countrys , they dont go and make special vehicles for the 3th world like some dreamers on here seem to think
intrade,
Nov 28, 11:15am
now to what will happen on 91 the knock sensor will detect detonations and retard the timing = loss of power to stop the bashing of the bigend bearings , enough bashing causes play and then the timing is even more late more detonation and more retarding of timing till the conrod pokes out the side of the block one day. that would be what can happen if its not made to run 91 octane
toyboy3,
Nov 28, 11:16am
Blue and yellow holdens are good for 91
franken1,
Nov 28, 11:24am
In short, if the manufacturers specs state 91, run it on 91. You may get a slight inprovement in performance on a higher octane petrol but basically you're wasting money.
m16d,
Nov 28, 11:25am
Why would you even want to run it on 91 if it goes better on 95. ?
mm12345,
Nov 28, 11:28am
"Regular" petrol in Japan is 90 RON, so actually slightly lower than NZ. "Premium" is 100 RON. http://i.imgur.com/wJMMNGT.png If there's a label under the filler flap, that might help identify what to use. No 100 RON in NZ, but 98 is close, though possibly avoid 95 RON.
tamarillo,
Nov 28, 11:32am
Although it might adjust and run ok without pinking on 91, it may well be less efficient and use more feul, as well as give less power. It might be false economy. 95 min I reckon.
gsdz4me,
Nov 28, 12:14pm
Thank you. If I do decide to go with it, I will run 95 if I find that is what the manufacturer recommends (car yard gave me the info so just wanted to check). My current car runs on 91 (first one I have owned that does, all others have been 95). What I am looking at is not an import.
bjmh,
Nov 28, 12:45pm
what year /model is it
franc123,
Nov 28, 1:17pm
If its a yellow Holden it should be on 95, purple ones on 91 as that's a direct match with the actual colour of the petrol. For all other colours the fuel type is encrypted into the paint code and should be dealer confirmed, its based on the components in the paint and its overall closeness to either purple or yellow. Significant engine damage is caused if you don't use the correct fuel.
gsdz4me,
Nov 28, 1:30pm
2010 white commodore.
yabba2,
Nov 28, 1:46pm
ALL v6 commodores from 1989 on other than supercharged models are designed to run on 91.If you want confirmation, ask any Holden dealer.
nasdaq,
Nov 28, 1:48pm
Blonde ones run 50/50
ema1,
Nov 28, 2:00pm
Tokyo petrol ranges are 90oct Regular, 95oct Premium and 98oct Ultimate RON rated petrol. Higher 100oct Super Plus fuel is readily available at various outlets in Japan. Lots of Japanese Car Owner Manuals do actually specify 90-91oct for various models and others range from 95oct to 100+oct RON fuels so if they specify it. use what they specify IMO.
bjmh,
Nov 28, 2:09pm
91 will be fine ,I had a 09 gtr from new . just sold, ran well on 91. mind you it was red !
differentthings,
Nov 28, 2:10pm
The difference between 91 and 95 is about 6 cents. So if the tanks was 70 litres the difference between the 2 is only $4.20. So if it was designed to run on 95 use it.
mimik3,
Sep 1, 1:35pm
And 91 RON is available in Europe, but is being phased out. Still available in Germany and a lot of Eastern Europe.
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