Re: [T3] Engine noise

["Daniel Baum" <daniel@type34.info>]

<x-flowed windows-1255>>> I had wondered whether I needed a higher-octane petrol but I would be 
> > quite surprised if this is the case. I use 96 octane. Since they stopped 
> > selling leaded petrol over here a couple of years ago, the 96 octane has 
> > had a potassium additive added to it (I think this is what they call LRP 
> > in England). Other options are 95, 98 and 99-octane unleaded. Surely it 
> > shouldn't require 99 octane?
>
> Yipes! Here in NY I think the highest we can get is 94 (Sunoco Premium). 
> 93 as premium is much more common. If you're getting pinging at 96 octane, 
> either your engine compression ratio is completely messed up, or this is 
> NOT the issue.


Don't forget that there are two octane ratings. As far as I know one is used 
in America, and one is used everywhere else. The numbers in the American 
system are lower, but I don't know by how much.

Daniel 

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