Opti-Lube XPD All-Season Diesel Fuel Additive 8oz (24 Pack)

In this review of Opti-Lube XPD All-Season Diesel Fuel Additive, the bottom line is simple: this 24-pack of 8oz bottles is for diesel owners who want improved lubricity and year-round performance without changing hardware. The reviewer found the formula useful for reducing injector wear and keeping tanks cleaner, and its ability to boost cetane up to 3 points and act as a demulsifier are the primary reasons to buy. For fleets, truckers, and owners of farm or construction equipment who value maintenance and uptime, the case offers convenience and predictable dosing.

Key Features

• Increases lubricity: The formula improves the lubricating properties of ultra-low-sulfur diesel to reduce fuel system wear and protect injectors.
• Improves fuel economy: Users report better mileage and more consistent power across seasons thanks to the additive's year-round formulation.
• Cleans injectors: The treatment helps remove residue and prevents future build-up, which supports smoother engine operation and lower emissions.
• Enhances performance: It can boost cetane by up to 3 points and stabilizes fuel for better cold- and warm-weather performance.
• Water separation and storage life: Acts as a demulsifier to separate water from diesel and more than doubles standard diesel storage life.
• Economical dosing: Each 8oz bottle treats up to 32 gallons of diesel, making the 24-pack useful for frequent users or fleet servicing.

Who It's For

This product is best for truckers, small fleets, farmers, and equipment owners who regularly use diesel and want a straightforward additive to maintain injectors, reduce wear, and potentially improve fuel mileage. The 8oz bottle size and 24-bottle case suit those who need multiple treatments or who service several vehicles.

Those who should look elsewhere include owners who prefer single-dose bulk concentrates or who require product certification specific to a particular engine manufacturer; verify compatibility with specialized systems before use. Also, if dosing convenience per tank matters, check bottle size and treat rate to match your fuel capacity.

Pros & Cons

Pros

• Improves lubricity and helps protect fuel injectors against wear.
• Cleans existing injector deposits and helps prevent future build-up for smoother running engines.
• Boosts cetane up to 3 points and helps separate water from diesel for storage and seasonal reliability.
• Case of 24 eight-ounce bottles provides convenient dosing and is useful for multiple vehicles or repeated service.

Cons

• Some customers find the per-bottle cost higher than other additives, so value depends on perceived mileage gains.
• Reports on fuel mileage improvement are mixed, so results may vary by engine and operating conditions.

Specifications

Product	Opti-Lube XPD All-Season Diesel Fuel Additive
Package	24 x 8oz bottles
Treat Rate	Each 8oz treats up to 32 gallons of diesel
Primary benefits	Lubricity, injector cleaning, cetane boost, demulsifier
Uses	Trucks, farm and construction equipment, diesel vehicles
Storage effect	More than doubles standard diesel storage life

Our Verdict

For diesel owners focused on maintenance and longevity, the Opti-Lube XPD 24-pack is a practical choice that delivers clear benefits in lubricity, injector cleanliness, and seasonal reliability. While fuel-mileage results can vary, the product's cetane boost, water separation properties, and convenient dosing make it a worthwhile addition to routine service for trucks, farm machinery, and construction equipment.

Frequently Asked Questions

How much fuel does one 8oz bottle treat?
Each 8oz bottle treats up to 32 gallons of diesel; follow bottle directions for best results.

Can this be used in small farm equipment?
Yes, the formula is suitable for trucks, tractors, and construction equipment that run on diesel.

Will it help in winter conditions?
The additive contains anti-gel and acts as a demulsifier, helping performance in cold weather and improving fuel storage life.