[KevinH1990]

I've been using Rhino Ramps for years, but I recently had an opportunity to use a drive-on lift for an oil change. I did not make a precise measurement, but my impression is that I needed about an additional 1/2 liter of oil to bring the reading up to full. So, I believe you don't get all the oil out using ramps.

There's a spot under the front of the car (search on a term like "jacking up a Boxster") for more information. I've thought about doing this, but my mental risk versus reward calculation (i.e. the possibility of pushing the car off the ramp versus squeezing out a few more drops of oil) caused me to decide not to do it. Also, the Boxster has low clearance and if the nose is pointing down, some jacks may not fit under the car.

Regarding your floor - my ramps have rubber feet on them and I don't think they would slide on a Racedeck. Please be advised that the oil comes out very quickly and it may overflow some oil receptacles. You may want to take steps to protect the floor against a spill.

Good luck