How many oz per tank full

The answer depends on your tank size. Standard treat rate is 1/4 oz per gallon of diesel fuel, or 1/2 oz per gallon if temperatures are consistently below 32F. For a 32 gallon tank you will use 8 oz, or 16 oz if it is consistently below freezing (32F).

I saw a study showing the usage rate to be 13 ozs per 26 gallons of fuel, has this changed? I see now the concentration calls for 8 ozs.

The most recent lubrication tests have been done at the 1/2 once per gallon so 13 oz per 26 gallons. That is the premium ratio listed on our website. You may just want to experiment with your truck to see where it runs the best. start with the 13oz and lower each tank going forward and see if you get better fuel mileage. If your in colder weather, you may want to stick with the higher ratio till it warms up.

Why is this priced 50% higher than msrp? msrp is $53.65 a gallon

Check the vendor. Or order directly from Optilube. Amazon vendors are free to charge whatever they want,

Can you run this in summer as well. I ask because it performes better than the summer Opti - lube formula when it comes to lubricity

Many customers run the XPD year round. Some for different reasons but the HFRR tests is one reason. Others so they only have to handle 1 formula and can buy in bulk.

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Opti-Lube XPD Formula

Product ID: 16153418

Details

Brand
Opti-Lube
Liquid Volume
1 Gallons
Package Information
Jug
Recommended Uses For Product
Automotive
Specific Uses For Product
Prevent

⛽Treats 512 gallons - max mileage boost

❄️Anti-Gel protection down to -10°F

🛠️Injector cleaning & corrosion prevention

SAR 591

Duties & taxes included

In stock

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Description

🚛 Power your drive, rain or shine — fuel smarter, not harder!

INJECTOR SAVIOR - Cleans and protects fuel injectors to maintain peak engine efficiency and reduce emissions.
ALL WEATHER WARRIOR - Anti-Gel formula keeps diesel flowing smoothly even in freezing -10°F conditions.
MAXIMIZE EVERY MILE - Treats up to 512 gallons for unbeatable fuel economy and power year-round.
RUST CORROSION SHIELD - Defends your engine components against wear, extending vehicle life and reliability.
COST EFFECTIVE PERFORMANCE - Premium diesel additive that delivers big savings at just pennies per treated gallon.

Opti-Lube XPD All-Season Diesel Fuel Additive is a high-performance liquid formula designed to enhance diesel engine lubrication, improve fuel economy, clean injectors, and prevent corrosion. Treating up to 512 gallons per gallon of additive, it includes anti-gel protection effective down to -10°F, making it ideal for year-round use in trucks, farm, and construction equipment. Highly rated with 4.8 stars, it supports emissions compliance while extending fuel storage life and engine durability.

Specifications

ASIN	B00FOSSQJU
Best Sellers Rank	#9,036 in Automotive ( See Top 100 in Automotive ) #18 in Diesel Additives
Brand	Opti-Lube
Brand Name	Opti-Lube
Container Type	Jug
Customer Reviews	4.8 out of 5 stars 686 Reviews
Item Form	Liquid
Liquid Volume	1 Gallons
Manufacturer	Opti-Lube
Model Number	OPT-XPD1-NA
Package Information	Jug
Part Number	OPT-XPD1-NA
Recommended Uses For Product	Automotive
Specific Uses For Product	Prevent Corrosion
UPC	853001004146

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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