Bill Payer wrote:
>
> ......can I use straight unleaded fuel in the twin carb type 4 1800 Bus or
> do I need to use an aditive?
> Also, I've been told that the 1800 block is one of the strongest and the one
> which is used in VW racing, is this true?
>
> Thanks, Ash.

They all are used in VW racing, some just hold up better than others
The type 4 engines are considerably tougher, yes. (1.7, 1.8 and 2.0 )
They don't wear and flex nearly as much.

Jan