Opti-Lube XPD All-Season Diesel Fuel Additive Gallon - Better MPG

In this review the Opti-Lube XPD All-Season Diesel Fuel Additive is judged as a practical, workhorse treatment for owners who want improved lubrication and modest fuel economy gains without fuss. It is best for truck, farm, and construction equipment owners who run ultra-low-sulfur diesel and want a single, year-round product that cleans injectors, protects against corrosion, and adds anti-gel protection to -10F. The biggest reason to buy is the combination of injector cleaning and increased lubricity delivered in a gallon that treats up to 512 gallons, keeping operating costs low.

Key Features

• Lubricity boost: Formulated to increase the lubricity of ultra-low-sulfur diesel so fuel pumps and injectors receive better protection and reduced wear.
• Fuel economy improvement: The XPD formula has been shown to enhance fuel mileage year round, helping owners stretch each gallon further.
• Injector cleaning: Actively helps clean injectors and reduce future deposit build-up to preserve efficient spray patterns and combustion.
• All-season performance: Contains anti-gel enough to keep diesel flowing down to -10F and acts as a demulsifier to separate water from fuel.
• Rust and corrosion prevention: Adds protection against corrosion to help keep fuel system components in better condition over time.
• Economical treatment rate: One gallon treats up to 512 gallons of diesel, lowering the per-gallon cost of maintenance.

Who It's For

Opti-Lube XPD is aimed at truck drivers, farmers, and contractors who run diesel equipment on ULSD and want a low-maintenance additive that works year round. It suits owners who prioritize longer injector life, quieter pumps, and incremental MPG improvements without changing fueling habits.

Those who need extreme cold-weather protection below -10F or have specialized diesel formulations with manufacturer-specific additive requirements should verify compatibility before use. If you need certified laboratory emissions testing or factory-specified warranty additives, check with your equipment maker.

Pros & Cons

Pros

• Improves lubricity to help protect fuel pumps and injectors.
• Cleans injectors and reduces deposits, supporting steadier performance.
• Provides anti-gel protection to -10F and helps separate water from fuel.
• Economical treatment rate treats up to 512 gallons, lowering operating cost.

Cons

• Performance gains are generally modest; customers report mild MPG improvements rather than dramatic changes.
• Not designed to replace specialist additives required by some manufacturers for warranty compliance.

Specifications

Product	All-Season Diesel Fuel Additive
Volume	1 Gallon
Treatment Coverage	Treats up to 512 gallons
Cold Flow/Anti-Gel	Contains anti-gel to -10F
Key Functions	Lubricity boost, injector cleaning, demulsifier, corrosion prevention
Compatibility	Ultra-low-sulfur diesel (ULSD) systems and emissions equipment compatible

Our Verdict

For diesel truck, farm, and construction equipment owners looking for a simple, cost-effective maintenance additive, Opti-Lube XPD delivers solid value. It combines injector cleaning, lubricity enhancement, and winter anti-gel protection in a gallon that treats many tanks, so it is a sensible purchase for routine upkeep and modest fuel economy gains.

Frequently Asked Questions

How much fuel does one gallon treat?
One gallon of this formula treats up to 512 gallons of diesel.

Will it protect fuel systems in winter?
Yes; the formula includes anti-gel properties effective down to -10F and acts as a demulsifier to help separate water from fuel.

Is it safe for vehicles with emissions systems?
The product is designed to be compatible with vehicle emissions systems and helps reduce deposits and emissions when used as directed.