Optimax where have you gone?
Discussion
Don't know if it something to do with the big fire, but all my local garages seem to have fuel, but no optimax.
I know that this has been the subject of lots of previous threads, but just wanted a very simple and quick answer of what would be a good alternative as I am nearly out of fuel and need to take her for a run.
I know that this has been the subject of lots of previous threads, but just wanted a very simple and quick answer of what would be a good alternative as I am nearly out of fuel and need to take her for a run.
You could try BP ultimate, although shows as a 97octane, quite a number on the thread use it. Can't say i have noticed any real difference between the two, although currently use Optimax, but have noticed number of garages supplying declining slightly (some where changing to another supplier). There have been a number of views about the various higher octane petrols from various suppliers, i would suggest that, in the absence of any others, any of the higher rated ones would suffice. Some have said they have used 95octane with no problems, personally i wouldn't be in favour of that as 98 is recommended. EVO magazine Jan 06 magazine has an interesting article on the various fuels, and one comment they made was that the higher rated fuels seem to be more affected by ageing, so buy from somewhere with a high throughput if possible. Some Tesco also now do 99octane, but seems to be more easily available in S East.
andy-w said:
i work with someone who has a 5ltr chim and he has always used ordinary standard unleaded and never had any problems...i use optimax most of the time bt fill uo with standard unleaded about every 4th fill...i have had problems but i dont think it is to do with the petrol
You are off work till next year???
At last!!! I have the best car in the car park!!!!
Sorry i thought you said you used standard unleaded...humble apologies...mind you i was hammered when i posted that comment!!!
IVANHOE said:
vixpy1 said:
Junk all that lot,
Tesco 99 is best by far..
Read January's Evo Mag they have tested all the brands. There verdict---Optimax, but not by much!!!
I put whatever is available in mine and it doesn't seem to make much difference. Trev.
yes the the price difference for the small difference in performance.
Optimax 94.9 and tesco 89.9 at my local
IVANHOE said:
vixpy1 said:
Junk all that lot,
Tesco 99 is best by far..
Read January's Evo Mag they have tested all the brands. There verdict---Optimax, but not by much!!!
They obviously didn't have an MZ as a test vehicle
Otherwise, they might have found that Optimax is the worst, by quite a significant margin. Can any experts validate the following predices?
My missus Nissan 300ZX has knock sensors and a fully digital ignition system. It automatically adjusts the ignition timing and hence runs better on higher octane petrol. I believe most modern engines including the SP6 and AJP8 have the same thing (although I don't know why the Red Rose models had a 95/98 button).
My distributor equipped Griff on the other hand runs exactly the same ignition advance regardless of fuel. Any performance / economy improvements are on the general quality of the fuel and detergents, not the octane rating. To take advantage of a higher octance fuel, the ignition has to be advanced by hand (mine has been set for Optimax).
Ian A.
My missus Nissan 300ZX has knock sensors and a fully digital ignition system. It automatically adjusts the ignition timing and hence runs better on higher octane petrol. I believe most modern engines including the SP6 and AJP8 have the same thing (although I don't know why the Red Rose models had a 95/98 button).
My distributor equipped Griff on the other hand runs exactly the same ignition advance regardless of fuel. Any performance / economy improvements are on the general quality of the fuel and detergents, not the octane rating. To take advantage of a higher octance fuel, the ignition has to be advanced by hand (mine has been set for Optimax).
Ian A.
mcflurry said:
Stuck a tank of sainsburys super in my wifes car yesterday. 86.9 a litre for super, and it came from a BP tanker too ![]()
All Sainsbury's fuel is supplied by BP - well every time I've seen a delivery at Sainsburys it's been a BP tanker.
So, BP Ultimate at 86.9p/l sounds okay to me. My Cerb is quite happy on it.
>> Edited by Tyre Smoke on Monday 19th December 14:49
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then again I was going
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