im going to change my gearbox oil in my 97 mk3 golf 16v and have some of this stuff at home will it be ok http://www.eurocarparts.com/ecp/c/V...nual-transmission-fluids/?522770390&0&cc5_868 i know the spec states 75w/90 but will the 80w/90 gl5 be ok...and GL5 as someone mentioned can damage box so should be gl4. if not will this be ok http://www.eurocarparts.com/ecp/c/V...nual-transmission-fluids/?522770332&0&cc5_868 cheers