Diesel anti-gel additive dosing calculator
Enter the gallons you are treating and the ratio on your bottle's label. The diesel anti-gel additive dosing calculator tells you how many ounces to pour, how many bottles to buy and what it costs.
The label values here are only an example. Every product doses differently: copy the ratio from your own bottle.
ADD
25.6 oz
1 bottle of 32 oz
Pour 25.6 oz in before you fuel so the fill mixes it, unless your label says otherwise.
Follow the product label over this tool. Do not exceed the label's maximum dose, and check your engine maker's guidance on additives and fuel blends.
Cold-weather lanes need planning around fuel stops and shutdowns. Our dispatchers plan loads around your hours and home time, and you can turn down any run. Dispatch runs 5% of gross for one truck, and you confirm every load.
By Nathan Beck · Updated October 2026
Gelled fuel stops a truck cold, usually at the worst time and place. Treating diesel with an anti-gel additive before temperatures drop is cheap insurance against it, but only if the dose is right. This diesel anti-gel additive dosing calculator takes the ratio printed on your bottle and the gallons you are fueling, and tells you exactly how many ounces to pour and how many bottles you need.
Why the label decides the dose
There is no single right amount of diesel anti gel. Products are formulated differently: one brand covers hundreds of gallons with a quart, another needs more, and many list a stronger dose for severe cold. That is why the tool never assumes a ratio. You copy two numbers from your label, how many ounces cover how many gallons, plus any stronger dose the label gives for colder weather.
Semi truck and hotshot anti-gel
The math is the same for any diesel, whatever the brand. A semi truck anti-gel additive doses a big fill, often a couple of hundred gallons across two tanks, so bottles add up quickly. A hotshot pickup tank is much smaller, which makes overdosing the more common mistake: a quart meant for a semi's fill is far too much for a pickup. Pick the truck type to start, then set your real gallons. Our hotshot dispatch page covers the rest of running a hotshot through winter.
How it is calculated
- Ratio: label ounces divided by label gallons, in ounces per gallon.
- Dose: ratio times the gallons you are treating, times the label's stronger dose for your temperature if it gives one.
- Bottles: the dose divided by your bottle size, rounded up to whole bottles.
- Cost (optional): bottles times the price, and the cost per gallon you actually use.
- Blend (optional): the fill split into No. 1 and No. 2 gallons for the share you choose.
What a good and a bad result look like
A good result is the label's dose, poured before fueling, into fuel that has not yet cooled, with a spare bottle and a fuel filter in the truck. A bad result is guessing: too little leaves you unprotected, and too much wastes money and may go against the label or your engine maker's guidance.
Winter is also when fuel stops and idling cost most. Many drivers buy their winter fuel where a station sells a cold-weather blend; see truck stop fuel, and stack savings with fuel rewards programs for truckers. The trip fuel cost calculator prices the run, and the idle cost calculator shows what keeping the engine warm overnight costs.
Winter lanes, planned with you
Cold-weather runs need planning around fuel stops, chain laws and closures. Our dispatchers plan loads around your hours and home time, show you the route before you say yes, and never push a run you are not comfortable with. You confirm every load and get the rate con yourself. See how it works for owner operators, or apply in about two minutes.
Questions about this calculator
How much anti-gel do I put in diesel?
Exactly what your product's label says for the gallons you are treating. Every brand doses differently, and many give a stronger dose for colder temperatures. Copy the label's ounces and gallons into the calculator, enter how many gallons you are fueling, and it works out the ounces. Do not go over the label's maximum dose.
What is the best hotshot winter diesel additive?
We do not rank additive brands, because we have not tested them and labels and formulas change. Choose one made for your engine and climate, from a maker that states its dosing and cold-weather claims clearly, and check your engine maker's guidance on additives. Hotshot anti gel works the same way as for a semi; you just dose far fewer gallons.
When should I add anti-gel to diesel?
Before the cold arrives, not after the fuel has started to gel. Most drivers pour the additive into the tank just before fueling so the incoming fuel mixes it. Follow your label: some products work on fuel that has already clouded and some do not. If fuel has gelled, the fix is usually warmth and a filter, not more additive.
Should I run No. 1 diesel in winter?
Many fuel stations in cold regions sell a winter blend that already mixes No. 1 diesel into No. 2. Ask what the station's winter fuel is blended to, and check your engine maker's guidance. If you blend your own, the calculator splits a fill into No. 1 and No. 2 gallons for the percentage you choose.
Winter runs planned with fuel stops in mind
You see the route first, and you can turn down any run.