How it works
The more you refer, the more you earn.
Share your link
Send your custom Docâs Diesel referral link to trucker friends, coworkers, or anyone who wants cleaner engines and better performance.
Give $10 to your friends
When they place their first $50+ orderâinjectors, filters, additives, whateverâthey instantly score $10 off their cart.
Get $10 for your next purchase
As soon as their order is confirmed, you earn a $10 gift card to spend on your next round of diesel essentials.
HAVE QUESTIONS?
Good, cause we have answers.
How does the Refer a Friend program work?
When you refer a friend, they will receive a link to purchase with a special discount that will automatically apply to their first order, and youâll receive a reward too!
How do I refer a friend?
Enter your email address and share your unique referral link with friends and family. They can use the link to make their first purchase, and their discount will automatically be applied at checkout.
How do I track the number of referrals Iâve made?
Enter your name and email above, then click My Stats. From there, you can send yourself an email which will contain your stats.
Is there a limit to how many people I can refer?
No, there is no limit to the number of people you can refer. You can refer as many friends as you like, and you'll get a reward for each successful referral!
How does my friend get the discount?
When your friend uses your unique referral link, the discount will automatically be applied to their first order at checkout.
Can I refer friends who are already customers?
The referral friend reward is only valid for new customers.Â
How will I know if my friend has made a purchase?
You'll receive an email notification once your friend completes their first order using your referral link.