Then if the Vanagon's 1.9 engine was contemporaneous with the in-line
4/Audi 5 engines (I'm not familiar with the timelines of various flavors
of engines that VW used), it suggests that the engineers had access to
"D" length plugs and said, "Nein!".

Could one compensate for the increased risk of ping by using
higher-octane fuel?

--
Jack "Rocket j Squirrel" Elliott
1984 Westfalia, auto trans,
Bend, Ore.

On 08/21/2012 06:45 PM, Dennis Haynes wrote:
> Yes, all the in line 4/Audi 5 engines used the "D" reach plugs.
>