This is probably going to seem a stupid question to some, but any tips or tricks for doing this easy and or efficiently? I mean, I know it's just removing one simple plug on the pumpkin, but the correct level should be even with the bottom of the plug, so does that mean you are expected to jack the back up to drain out as much as possible and then measure what you remove and replace that same amount with new, or again to the bottom of the plug when level? That is the only common sense approach I see shy of using a syphon. Also, what's the best replacement diff fluid to use? If the age and brand of exisiting is unknown and fully draining and flushing is not possible, then is brand mixing an issue, like say with antifreeze or brake fluid etc....? I'd like to tackle this in the fal, so any insight would be greatly appreciated. The stupid repair manuals basically only say remove plug, drain and replace. Gee, thanks alot oh great and insightfull sensei.