Opti-Lube XPD Diesel Fuel Improver Additive - XPD
Opti-Lube XPD Diesel Fuel Improver Additive - XPD
Opti-Lube XPD is a multifunction diesel fuel additive for ultra low sulfur diesel (ULSD). It is formulated to improve lubricity, clean injectors, improve cetane, and provide preventative anti-gel performance.
Add the preventative anti-gel at the pump while fueling, before diesel fuel reaches its cloud point.
- Treats up to 512 gallons of diesel fuel
- Increases cetane by up to 3 points
- Helps fuel flow down to -10 F
- Cleans injectors and reduces deposits
- Helps prevent rust and corrosion
- Improves water separation and storage stability
- Does not contain harmful alcohols
- Compatible with all vehicle emissions systems
Shipping, returns & fit
Shipping is free on U.S. orders of $75 or more; orders under $75 ship for a flat $4.95. We currently ship to U.S. addresses only.
Orders are picked and packed within 5-7 business days. Once shipped, delivery normally takes another 7-10 business days, and you'll receive a tracking link by email. Full details on our Shipping Policy.
You have 30 days from delivery to return any unworn item with tags in its original packaging. Return postage is paid by the buyer, unless your item arrived damaged, wrong, or never arrived — in those cases we replace it or refund you in full and cover the postage.
Approved refunds go back to your original payment method within 5–10 business days. See the full Refund Policy.
Available sizes are listed on this page. Between sizes? Email us and we will help you choose. Colors may vary slightly between screens and batches. Natural variation in materials is part of the character, not a defect.
Call +1 212-673-5372, email support@cobblestonesvintageclothing.com, or use our contact form. A real person reads every message, Tue-Sun, 1 PM - 7 PM ET — usually answered the same business day.