When planning our road trips this summer I kept seeing dreamy car diffusers in my scroll. Glowing with sunlight hanging from a rearview mirror, they really caught my eye!

I could only imagine the unique aroma of essential oils infusing our trips. I noticed some car diffusers were filled with colorful flower petals or small crystals, and others, sparkly glitter. Considering, I had all the above, I couldn’t wait to make this easy essential oil DIY this summer! 

So, I began the hunt for an empty glass car diffuser. It didn’t take long to find these glass diffusers with a wooden top that reminded me of a honey spoon. At less than a dollar each, how could I resist? 

Unlike other car air fresheners, these are sustainably made and when filled with natural essential oils, they are great eco-friendly alternatives to plastic vent clip diffusers. Don’t you agree? 

Plus, I love the fact that they are refillable, so I can change the scent out as often as I like. 

Whether planning a road trip, regularly commuting to work, or driving the kid’s carpool, I know you’ll enjoy making a car diffuser with essential oils!

Follow the tips below to make your own car diffuser, find the best essential oils for car diffusers, how many drops to add, and how to refill. 

How many drops of essential oil do you put in a car diffuser?

Like most things, a ten percent blend of essential oils creates a good aroma. All you need is 1ml of essential oil diluted in these glass and wood car diffusers.

For reference, a 5ml bottle of essential oil equals 100 drops. Which means 1ml equals 20 drops. 

How do you dilute essential oils for a car diffuser?

You have a couple of options to dilute essential oils for a car diffuser. The easiest option is using a diffuser oil. I love this one made with coconut oil!

Another option is vodka. It is fairly odorless compared to rubbing alcohol. It can be combined with coconut oil for a longer-lasting scent, like the diffuser oil. 

Notes: 

• You can leave the tiny cap off, but risk spilling the oils. 
• Avoid hanging a diffuser too close to your windshield. 
• If your state has a law against hanging items in your rearview mirror use this glass vent clip diffuser.

So, if you were wondering if it’s OK to put a diffuser in the car, now you know it is with these tips. 

But, car diffusers aren’t just for the car… You can hang these sparkly diffusers in your entryway, powder bath, mudroom, pantry, or laundry room. 

How long do car diffusers last?

These DIY car diffusers can keep your car smelling fresh for weeks! Choose from the best essential oils for car diffusers above and refill them when they dissipate. 

How do you refill a car diffuser? Follow the instructions below to make a refill for your car diffuser. 

Crafted in charming glass diffusers with wooden tops and filled with dried calendula petals and gold flakes, these car diffusers turned out as dreamy as those in my feed. 

Make a few just for you or fill several for sweet little gifts! 

How To Make A Car Diffuser With Essential Oils

Step 1:

Remove each wood top and inside cap from the glass diffusers and set aside.

Step 2: 

Use crafting tweezers to add a few calendula flower petals and gold leaf flakes to each diffuser.

Step 3: 

Place a small funnel (this is one I used) inside a glass diffuser and add 10 drops of tangerine and juniper essential oil. Repeat for each diffuser. 

Step 4:

Fill the remaining with about 5 ml of diffuser oil. Then remove the funnel and seal with the cap and wood top.