I found that to remove the double sided tape it is best to use the 3M Adhesive Cleaner, it's not called Remover any more. I tried the heat gun and that just melted the adhesive and made a worse mess. WD40 worked but not as good as the 3M. I opened the hood and then put a towel across the top of the grill and then lowered the hood on the towel but did not let it latch, this keeps the 3M off the new grill. Then I grabbed a spray can of the 3M and sprayed just enough that it soaked the adhesive and foam. I let it sit for a minute or two and then used paper towels to start wiping it off. I went through several paper towels doing it this way but it was easy. If you just wipe a couple of times and then find a clean place on the paper towel it seems to come off faster. Keep the area you are working on wet with the 3M. I actually ended up using very little 3M once I was done.