Platnium Plugs for 1987 300E

Hey I was driving my car the other day and when I hit a fairly steep hill my car started to shake and rattle a little bit, so the first thing I thought was Sparkplugs. THere are a few other things than just that, but that was the main thing. I was hopeing someone here could tell me if the 4x Plantnium or 2x Platnium plugs would be ok to put in it, I read that they burn fuel more efficently. and BTW is the spark plug gap .032? and whats the torque required?

So if anyone has had any experience with this or has an idea please post it

Thank You