Never ever. I've been using WD40 to install grips for about 20 years.

WD40 reacts with rubber in a way that makes it slippery at first, then extremely sticky. Spray some inside the grips, shake out the excess and slide them on your bars (don't forget to poke holes in the ends of the grips or the second one will fill with air). Let them chill for a bit and they won't budge.