Should you use blue loctite on the four intake manifold bolts? It's a twin cam.

 

yes, blue on anything aluminum, red on steel . small amount 1 or 2 drops.

 

Yes I knew that was the case for most, but when I took them out they showed no signs of any loctite. I wonder if this is because of the location and could be hard to get out in the future. The manual does not state to use or not to use....I think I will use the blue.