That's good information. I too have a '93 JGC V-8 that burns oil
without leaks and pings easily. I couldn't find a picture of the
plenum pan in the service manual, but it seems to be part of the
intake manifold which has to be removed to get to the plenum pan.

----

On Sat, 13 May 2006 13:04:29 -0400, philthy <dbrider@cac.net> wrote:

>does it ping under slight load??
> then i would have it tested for a intake plenuim pan gasket leak
>they can be blown out and u suc oil in from the lifter valley resulting in a oil
>consumption issue and sometimes a rough idle and pinging no matter what gas is
>used i used to do 2 to 3 a week for this issue and the first thing brought up
>was a quart low wth no leaks
>
>"L.W.(Bill) ------ III" wrote:
>
>> Short trips of less than ten miles are a real sludge maker.
>> God Bless America, Bill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> Earle Horton wrote:
>> >
>> > Note that he's only included "Schedule B". Although as the schedule says,
>> > "Most vehicles are operated under the conditions listed for Schedule 'B'",
>> > many are not.
>> >
>> > Earle