Hey all, I wanted to post here to make sure this question gets viewed alot..... (sorry if its in wrong place).
2011 wrx - want to get the subaru extra -s 75-90 gear oil in my trans/front diff and rear diff. ( for better shift feel and added protection)
1.) what the heck is in there (diffs/trans) from factory?? I suppose a non synthetic 75-90 valvoline...... (someone told me that my car ALREADY comes with extra s from factory.... I doubt that.) Although Sti's have it, I think...
2.) front diff and trans SHARE their respective gear oil?
3.) the diffs and trans for WRX all use the same extra-s ?? (unlike Sti which uses a different oil for rear diff)
4.) has anyone with 11 wrx done this upgrade? is it worth it?
5.) I notice a spinning noise prior to gear engagement (while driving, not standstill)... could this be the normal sound of synchros spinning? I have KB bushings and S/S btw. Many have told me this is normal, especially with KB S/S and bushings..
thank you for reading!