Re: [doc] Advice required - Classic Cars/Unleaded (not a DeLorean)

[Martin Gutkowski - DMC Ltd <martin@xxxxxxxxxxxxxx>]

Our gearbox guy showed us the comical way in which Renault did it on the 
EFI 25's..... sold everyone a new flywheel sensor which was off-centre 
on its mounting bracket. Achievable with the old sensor, a vice and a 
little gentle use of a hammer

What I was getting at was distinguishing between engines that NEED lead, 
and those that simply need the timing knocking back. I suspect John's 
simply says in the manual that it needs 97 ron leaded to distinguish it 
from 2-star. Running it today with lead replacement additive is avoiding 
a simple jaunt with the timing light, as you say. I doubt very much if 
it's an engine that still needed it. But I'd be interested to know.

How long after unleaded did super unleaded arrive? (which brings the 
octane back up to 97)

Martin

Nick Tomlinson wrote:

>All engines should have been able to run on unleaded petrol from 1986 but there were a few exceptions.
>   
>  Showing my age here, I have the Unleaded Petrol Guide printed in 1989 with the data on which cars (of the time) could & couldn't run on it and which needed a timing reset.
>   
>  Cost me £3.50 and with a timing light got me quite a few beers at uni.
>   
>  NickT.
>  
>




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