When it comes to the intake manifold gasket, one of the most important questions that must be answered is whether or not you should use sealant. This can be a tricky question because there are pros and cons to both sides of the argument. On one hand, some mechanics believe that using sealant will help ensure a tight seal between the gasket and manifold and prevent any future leaks. On the other hand, others argue that applying too much sealant could actually create more problems than it solves by blocking off air passages or causing uneven stress on certain areas of the gasket which could lead to failure down the road. The best advice is to consult your car’s owner’s manual for their recommendation before making a decision either way as what works for one vehicle may not work for another.