GOT SMALL DILEMMA AFTER LAST SUNDAYS GINGERMAN
first of all i put 75w-90 like manual asks for and that was mistake, grinding and shifter felt like it is water inside
i put 80w-90 from amsoil and everything was fine until i did 2 sessions almost on after another, 4th gear started grinding little bit
my concern was it was pretty chilly out there so probably it will be much worse when it is gonna be 100 outside
my friend is pushing me towards motul, he claims all his problems went away when he started using that
car got 90k already,
do you think better/thicker oil can help or synchros are just starting to ear out??