Model S and Model X: Free Unlimited Supercharging
The first friend that use the referral code will recieve a $500 discount toward service or vehicle accessories - expires april 30 2018.
Owners can give five friends free, unlimited Supercharging with the purchase of a new Model S or Model X. In addition to unlimited Supercharging, the first friend each owner refers between February 1 and April 30 will also receive a $500 credit toward service or vehicle accessories. After April 30, this credit will no longer be available.
The Tesla referral program has had a small change, and it's now OK to share the link on social media as well as on informative web sites, like this one.