[Spridgets] ZDDP in oil (again) ...sorry

[Billy Zoom]

> Unless they've recently changed the formula, the RED bottles of
>      STP for 4 cylinder engines have more than the BLUE label ones.
>      The RED is supposed to have enough...
The red also doesn't raise the viscosity like the blue does.
I was ordering it by the case before Ron turned me onto the Hot Rod oil from
Lefthander. That only comes as thick as 10/40, so I still add a little blue
to it for the Ranchero.
BZ