Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
Was excited to try the FJC refrigerant oil, but it seemed to stain the fittings a bit more than I thought it would. It works, but just be cautious about cleanup after using it. Not the best experience overall.
A
Aisha Khan
Effective but pricey
This refrigerant oil works effectively and I saw results quickly, but I feel like it’s a bit overpriced for what you get. Still, if you need quality refrigerant oil, this is a reliable choice.
L
Liam Patel
Easy to use with clear results
FJC Inc.'s DyesterCool is a great addition to my AC maintenance kit. The dye makes it super easy to see leaks, plus the oil seems to keep everything running smoothly. Happy with this purchase!
C
Carlos Mendoza
Great for AC maintenance jobs
I used the FJC Inc. DyesterCool oil for topping off my car's AC system, and it worked like a charm. The dye helped me spot a small leak I didn't even know was there! Definitely a handy product for anyone who wants to keep their AC running cool.
S
Sarah Kloss
Solid product but slow delivery
The refrigerant oil from FJC Inc. is solid, but I had to wait longer than expected for it to arrive. Everything else about it is great, and it did the job once I finally got it. Just be prepared for possible shipping delays.
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
