Terry,
I dont know if optimax is better than ultimate98 but I've read that the ultimate
contains less than 1 percent toluene as per WA's more stringent policy.where as
optimax uses up to 10 percent toluene to get it up to 98 octane but this still
meets with oz standards.
Andrew Smith
Terry Rudd wrote:
> Ryan,
>
> In theory you should be able to run +2 degrees more with Optimax than with
> LRP but it would seem only at the same altitude. If like me you live a
> couple of thousand feet above sea level the only problem is when you go down
> town to sea level. I was in Sydney yesterday and detonated Optimax for the
> first time (I was running +2 degrees over what I run on LRP) much to my
> surprise but back home today no problems. Also webers seem to run a bit
> richer at the same idle setting on Optimax than they do on LRP. I only
> realised this today as when I stopped for the first time in Sydney my idle
> was up about 300 rpm - I just lowered the idle stop a tad and kept going and
> it was fine all day. Anyway when just about at home I got a red light and it
> nearly stalled which got me thinking that the idle mixture must of been the
> problem. I turned the mixture screws in a third of a turn tonight and it's
> purring like a kitten and has come up again to the idle speed that I set in
> Sydney. I wonder what it's going to be like next time I'm a sea level.
>
> LRP(S) seemed to be OK in my engine in hot weather but it doesn't do the
> business too well in winter, so I'm going to run Optimax. I'm told the BP
> version is not as good, but on the other hand some ppl say it's the same
> thing but everyone agrees that the Ampol Gold is crap.
>
> regards
> Terry (never thought I'd be trying to find Shell stations again after the
> half lead saga)
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of
> [EMAIL PROTECTED]
> Sent: Wednesday, 20 June 2001 3:59
> To: [EMAIL PROTECTED]
> Subject: Re: Timing
>
> Thanks Terry,
> I did have it running on 16 deg but went back to 14 as I was running on LRP
> or
> LRPS as I like to call it (lead replacement s!@t). Anyhows basically since
> I
> changed it I have only run Optimax and never herd detonation. I did when it
> was
> on 16 with LRP in 5th gear going up a hill with it labering badly about 30
> miles
> to check for pinging and it did but only when really laboring with LRP
> haven't
> hered it on optimax allthough she is a noisy beast.
> Ryan
>
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