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 All-Season Diesel Fuel Additive - Gallon (1 Gallon (Treats 512 Gallons))

Opti-Lube XPD All-Season Diesel Fuel Additive - Gallon (1 Gallon (Treats 512 Gallons))

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

❄️Anti-Gel to -10°F

🛠️Injector cleaning & corrosion prevention

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Description

🚛 Keep your diesel running smoother, longer, and stronger—don’t get left behind!

MAXIMIZE EVERY MILE - Boost fuel economy year-round for smarter spending.
ALL SEASON RELIABILITY - Anti-gel formula keeps fuel flowing in freezing temps.
POWER MEETS EFFICIENCY - Enhances engine performance rain, snow, or shine.
COST EFFECTIVE COVERAGE - One gallon treats up to 512 gallons—pennies per mile.
ENGINEERED FOR LONGEVITY - Protect injectors and prevent costly corrosion.

Opti-Lube XPD All-Season Diesel Fuel Additive is a high-performance liquid formula designed to improve fuel economy, clean injectors, prevent corrosion, and protect diesel engines in extreme temperatures down to -10°F. One gallon treats up to 512 gallons of diesel, making it a cost-effective solution trusted by professionals to extend engine life and enhance year-round performance.

Specifications

ASIN	B00FOSSQJU
Best Sellers Rank	#11,749 in Automotive ( See Top 100 in Automotive ) #23 in Diesel Additives
Brand Name	Opti-Lube
Container Type	Jug
Customer Reviews	4.8 4.8 out of 5 stars (697)
Item Form	Liquid
Liquid Volume	1 gallons
Manufacturer	Opti-Lube
Model Number	OPT-XPD1-NA
Number of Packs	4
Part Number	OPT-XPD1-NA
Recommended Uses For Product	Automotive
Specific Uses For Product	Prevent Corrosion
UPC	853001004146

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

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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213411CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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