LS additive, yea or nay?
Just got done with my gear break in, L/S was installed at the same time. Im going to swap the fluid. I bought some 75/90 Valvoline syn-power to replace it with. The bottle states it can be used for L/S applications. Would you use any additional L/S additive with the Syn-Power? or use the gear oil by itself? Ive heard too much additive will cause the L/S to perform less efficiently but quiet it down and that it will perform better without the additive but cause excessive wear. Opinions welcome.