Front & Rear Diff Oil Change

[galtom]

Hi,

I wrote to Lexus dealership in my city (south of Poland) about front & rear differential and oil exchange,

This is info I got:

1. What specs oil for front and rear?

answer: SAE80W90 for both

2. How often should I change it?

answer: Every 30000 km = approx. 18500 miles

Can you confirm this info is correct? Would any one of you be kind enough (if you are not 110% sure) to ask your dealer about it?

Also... If I would give you my VIN no, would anyone be able to confirm (via dealership) if I got limited slip diff in the rear or not?

Thanks in advance for your help!

Regards,

G.