Getting Started

Starting your oil analysis program is easy. Get a kit, take a sample, and send it in!

  1. Get a Test Kit

Kits are free and we’ll send them anywhere in the world.
Get yours today!

2. Fill the Bottle with Oil

Most people sample when they do an oil change, but we also sell quick-draw pumps if you want to keep the oil in place.

3. Fill Out the Oil Slip

If you don’t have one of our kits, you can still send a sample; anything with a screw-on lid is okay to mail. Print an oil slip to go with it. If you’d rather not list your credit card on the slip, you can pay for the sample here.

4. Pack & Mail the Sample

Our kits come with a prepaid USPS return label. You can also print one here. Be sure to pack the sample correctly to avoid oil leaking out. Take a picture of the tracking number! Drop the sample in any blue mailbox, or send it at any post office. Note: Oil is not a hazardous material!

Yes. Oil is safe and legal to send if the flashpoint is above 200°F or 93°C (which your engine oil sample is).

This letter explains to the USPS that your sample, in our kit, meets all postal regulations.

  • Our free test kit contains all the packaging you need.
  • Take a picture of the tracking number so you can see when it gets here.
  • Not using our kit? The sample should be:
    • In a bottle with a secure, screw-on lid
    • In a ziplock/recloseable bag
    • Surrounded by absorbent material
    • Addressed to: 
      Blackstone Laboratories
      416 E Pettit Ave
      Fort Wayne, IN 46806

Image showing the customer number circled in red on an oil slip. The customer number is printed on the oil slip in the lower-rightmost corner.

5. Get Your Results!

We email results as a pdf attachment. Results will also be available online. You can create an account if you have your customer number available. Call us (260/744-2380) if you don’t!