Thank you so much dieseldude. toyota commonwealth casa checked the atf oil and the filter was just replaced last december. But I think I'll have the clutch checked, it might be worn out. If all else fails, I'll then ask the casa if they would have test parts to validate their diagnosis... I'd willingly pay the diagnostic fees rather than pay for replaced parts that aren't really defective... thanks again. You're welcome....

By the way, is there any shop in Quezon City you would recommend where I can have my clutch checked? thanks again. Sorry, I don't know.