[cleveman]

well - the lubeguard doesn't seem to have made any difference at all, unfortunately. I'm gonna try a bottle of injector cleaner next (just cause it's cheap and it couldn't hurt).

From reading all the threads that talk about a shudder - my problem could be anything from the tranny slipping to the fuel injectors being clogged to the ignition coil having cracks to the transmission pump failing - only to name a few. At this point the problem isn't significant enough to chase with hundreds of dollars of repairs / parts replacements that may or may not fix it. So I'm going to try the less expensive remedy's unless or until it gets worse. Now I have to decide if I want to risk it getting worse and costing lots to fix or if it's time to start shopping for a new minivan!