This is probably a stupid question but what the heck. Instead of using an oil extraction device or trough to change the oil on an ML320 has anyone tried a Fram Sure Drain? They don't make them specifically for Mercedes (hence the stupid question) but isn't there one that would fit on the 320? If one does fit is there a reason not to use it? I've had my 98 for about 6 months now and just found this baord a few days ago. Thanks for everything so far! - Jim