ulp is 91 ron
PULP is 95-96 ron
optimax 99 ron
Heath
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, 1 March 2001 10:04
Subject: Re: EFI L series engines and other fuel problems
> I,ve been using ULP in all my Dattos for the last 5 years with no
alternate
> fill ups with leaded/LRP and no additives. Both the L and A series engines
> have run faultlessly without any signs of damage. My 1200 coupe has done
> over 24,000 miles purely on ULP and is still okay as is my L26 in my 260C
(I
> mean was 'cos I sold it a week ago) which had done over 30,000 on ULP. Our
> ULP is generally 95 oct with PULP being 98.
> LRP is total crap fuel. It doesn't have to conform to any kind of standard
> here unlike all other fuels. I wouldn't use ever it. Besides, if ULP did
> damaged the cylinder head every 15-20,000 miles it would still be cheaper
to
> repair the head than pay the extra for LRP over ULP.
>
> Eddie
> England
> 17 Datsuns....
> [EMAIL PROTECTED]
> www.ratdat.com
>
>
>
> > Hi List
> > I have been told by an engineer and a engine builder that any L series
> > datsun with an alloy head can run unleaded fuel, it does not need LRP as
> > alloy heads are softer than the valves so valve recession or scoring
would
> > not be a problem. Appartently using unleaded fuel is only a big problem
if
> > the head is cast iron obviously much harder than aluminium where valve
> > problems occur.
> > But I am still a bit careful, I use premium every other tank full.
> >
> > Justin
>
>
>
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