Frequently Asked Questions
Frequently Asked Questions
Diesel Fuel Additives
What Additive should I use?
This is probably our most common question, and our most common answer is XPD All-In-One.
It is by far our most popular product and covers all your bases when it comes to concerns with your fuel.
Even customers in the lower states like Florida and Texas run XPD year round as it generally provides the most visible increases in mileage and power/feel.
For others, they may have only 1 or 2 concerns and another of our products may fit them better.
What is the shelf life of the product?
We generally say up to 5 years.
That being said, much depends on the storage location, temperature, sunlight, humidity and the volume of product left in the container.
In a perfect climate controlled storage location, the product could last longer.
Would suggest using it within 1-2 years to avoid any issues.
Does your Additives void my warranty?
No, our fuel additives are completely compatible with all makes, models and equipment. No damage will be caused to your fuel system or emissions equipment, including diesel particulate filters (DPF's) if using the product correctly.
What types of engines can it be used in?
Virtually any type of Diesel engine. All Diesel engines benefit from the features in Opti-Lube Diesel Fuel Additives, including those with the latest emissions equipment and the oldest diesels out there.
What is the treatment rate? How much do I use?
This varies by product, please see individual treatment rates on each product listing or on the bottles themselves.
Can it be used with other fuels like Bio or Kerocene?
Yes. All commercially available fuels will be improved by Opti-Lube Diesel Additives. Our testing shows full compatibility with Bio-Diesel, (up to B20) as well as Kerosene, Jet Fuels (non-flight use) and Renewable Diesel fuels. While not designed for gasoline, some customers have reported a gas mileage increase when XPD is added in small quantities (1oz per 5 gallons).
Does Opti-Lube Fuel Additives contain harmful Alcohol, Teflon; (PTFE) or other solids?
No. Opti-lube's Diesel Fuel Additives do not contain Harmful Alchohols, Teflon, solid particles, or anything that could cause harm to your fuel system.
(For more information about alcohol in fuel, please visit our blog. https://opti-lube.com/blog/emulsifier-vs-demulsifier/)
What is Cetane, and why boost it?
Cetane relates to how readily diesel fuel will combust in the cylinder, and higher numbers are better. The cetane in modern fuel is reduced by the removal of sulfur (producing ULSD) and winter blends of fuel, which frequently have Kerosene added. Improving cetane helps engines to start easier, and burn fuel more efficiently. Most manufactures recommend a Cetane rating of 50 or more. Standard rating for ULSD in the USA is 40-45, leaving a deficit of 5-10 points.
Can I mix Opti-Lube Diesel Additives?
Yes. Our diesel additives are completely compatible with each other. Though Opti-Lube's diesel additives were designed to be used alone, when attempting to pinpoint a specific benefit or cetane increase, mixing the products can be beneficial. For example, we have many customers that have found mixing XL with Boost! has yielded great results.
How should I add the product to my fuel?
Most customers just dump the required amount in before filling up. Some add half (or more) of the estimated amount before fueling, then the remainder just before the tank is full. The products easily disperse throughout the tank, no mixing is required. Once you go a round a corner......its mixed.
Is there a benefit to adding more than the recommended amount?
Fuels vary greatly by supplier, region and season. Some people see benefits to adding more and some to adding less than the recommended amounts.
Typically no benefits are found above the recommended maximum rates.
Are these products compatible with ULSD (Ultra Low Sulfur Diesel) and my vehicle's emissions equipment?
Yes. Opti-Lube Diesel Fuel Additives contain no sulfur, and are completely compatible with the latest model emissions equipment. Regeneration of the Diesel Particulate Filter may happen less frequently, since Opti-Lube treated fuel is burning more completely than untreated fuel.
Does it do anything besides reducing wear and friction ?
Yes.
These are multi-functional additives, each product improves water separation (a demulsifier), prevents corrosion, improve storage life and clean injectors. Depending on product they boost cetane and contain anti-gel additives. Each product has been found to improve fuel economy in most cases.
Can I mix Opti-Lube with a competitors product?
Generally Yes, but we do not suggest it.
There are some additives on the market that can actually reduce lubricity and handle moisture differently than recommended by engine manufacturers.
Gasoline Additives
Does your Additives void my warranty?
No, our fuel additives are completely compatible with all makes, models and equipment. No damage will be caused to your fuel system or emissions equipment, including if using the product correctly.
What types of engines can it be used in?
Virtually any type engine that uses Gasoline. All gasoline engines benefit from the features in Opti-Lube's Gas Additives, including large and small engines. We use it in our lawn mower and ATV's all the time.
What is the treatment rate? How much do I use?
This varies by product, please see individual treatment rates on each product listing or on the bottles themselves.
How should I add the product to my fuel?
Most customers just dump the required amount in before filling up. Some add half (or more) of the estimated amount before fueling, then the remainder just before the tank is full. The products easily disperse throughout the tank, no mixing is required. Once you go a round a corner......it's mixed.
