Alfa Romeo/Alfa Romeo Digest Archive
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Re: unleaded fuel
In a message dated 1/15/99 4:58:13 AM Central Standard Time, owner-alfa-
digest@domain.elided writes:
>
> When you run a pre 1986 engine that was designed to run on leaded fuel on
> the new crap it wears out the valve seats. So you have three alternatives
to
> wearing out your valve seats
>
> 1 Install hardened valve seats. This will work for a while but I know of
> cases where the seat has intern worn out the head.
> 2 Use a lead substitute additive. various sources think this damages your
> engine anyway. This stuff is available in New Zealand and costs about $1
per
> fill
> 3 Use Aviation Gasoline which is still contains lead (no road tax content
in
> the pump price either so it's both cheap and illegal to use)
>
Actually, I think this whole problem is overrated. I have had no problems
with either of my '70's vintage Alfa 2L motors running with the original valve
seats on unleaded. I think that this has become an urban legend.
Jerry in Houston
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