Nippon Reinz engineers work with OEMs to develop complete engine sealing solutions for gasoline, diesel, and alternative energy vehicles. We employ custom sealing solutions through our expert problem solving utilizing our regional research and development centers. As an Integral Partner with Virtually Every major vehicle and engine manufacturer worldwide, Nippon Reinz offers a comprehensive range of sealing Innovative Systems, INCLUDING Head gaskets, Heat shields, sealing modules, secondary gaskets, Valve stem Seals, and transmission components. Nissan stopped using a 1-piece oil pan gasket on V6 engines manufactured from mid-'87. VG engines after that were assembled using sealing strips at the front and rear crankshaft saddles and liquid gasket sealant along the sides between the engine block and the oil pan.