how to find the cheapest diesel near you in 2026
diesel prices can vary by 30-50 cents per gallon within the same city. if you're filling a 30-gallon tank, that's a $15 difference. here's how to actually find the cheapest diesel — and figure out if driving further is worth it.
why diesel prices vary so much
diesel pricing is different from regular gas. the same station might have competitive regular prices but charge a premium for diesel — or vice versa. a few reasons:
demand varies by location. stations near highways and truck routes price diesel differently than suburban stations.
truck stops vs gas stations. dedicated truck stops often have better diesel prices because they buy in bulk and diesel is their main product.
state taxes. diesel taxes vary by state. crossing a state line can mean 20+ cents difference per gallon.
apps that actually find diesel prices
not all gas apps show diesel prices — and even fewer help you figure out if driving to a cheaper station is actually worth it. here are the ones that work for diesel drivers:
homadic
homadic has a fuel grade filter — set it to diesel and you only see diesel prices. it also has a truck stop mode that filters specifically for pilot, love's, ta, petro, and maverik where diesel is the main product, not an afterthought.
what makes it different:homadic calculates whether driving to a cheaper station actually saves you money after factoring in real road distance and your vehicle's mpg. that's the calculation most diesel drivers do in their head — homadic does it automatically. no account required. no data collection. runs entirely on your device.
gasbuddy
gasbuddy has a diesel filter. crowdsourced prices are usually accurate, though diesel prices get reported less frequently than regular gas in some areas. good for finding raw prices, but doesn't calculate whether the detour is worth it.
trucker path
built for truckers, so diesel is the default. shows high-flow diesel pumps at truck stops. best for commercial drivers who need weigh stations and parking info too.
google maps
shows diesel prices at some stations but doesn't let you filter for diesel-only results. you have to tap each station individually to check.
the real cost of "cheap" diesel
found diesel that's 25 cents cheaper 12 miles away? before you drive there, do the math.
example: you need 25 gallons of diesel
station a: $4.19/gal, 2 miles away
station b: $3.94/gal, 12 miles away
savings at station b: $0.25 × 25 gal = $6.25
extra distance: 20 miles round-trip
fuel cost of detour (at 22 mpg, $4.05/gal avg): $3.68
actual savings: $2.57 — not $6.25
still worth it in this case, but if station b was only 15 cents cheaper, you'd save less than a dollar after fuel costs. add in the extra 25 minutes of driving and it starts to look different. that's the calculation homadic does automatically.
diesel-finding tips
check truck stops first
pilot, love's, ta, and petro almost always beat regular gas station diesel prices. they buy in bulk and diesel is their main product.
use fuel cards
fleet cards like comdata, efs, and wex offer per-gallon discounts at participating locations. can stack with app-based savings.
fill up before state lines
diesel taxes vary significantly by state. california, pennsylvania, and washington have some of the highest. if you're about to cross into a high-tax state, fill up first.
factor in real road distance
"3 miles away" might be 6 miles by road. apps that use crow-flight distance underestimate your detour cost.
avoid highway exit stations
stations right off highway exits often charge 15-30 cents more. drive a mile or two off the exit for better prices.
states with the highest diesel taxes (2026)
| state | diesel tax per gal |
|---|---|
| california | $1.06 |
| pennsylvania | $0.78 |
| indiana | $0.54 |
| connecticut | $0.50 |
| washington | $0.49 |
compare to states like alaska ($0.08/gal) or oklahoma ($0.13/gal). if you're routing through multiple states, planning your fill-ups can save significant money.
bottom line
finding cheap diesel is only half the equation. the station with the lowest price isn't always the best deal if you have to drive 15 miles out of your way to get there.
homadic was built specifically to solve this problem — it shows diesel prices, filters for real truck stops across all major chains, and calculates whether driving to a cheaper station actually saves you money after fuel costs. no account required, no data collection, and it runs entirely on your device.
you can also use gasbuddy with the diesel filter if you want raw crowdsourced prices, or trucker path if you need professional features like weigh stations and parking counts.
for most diesel drivers, the sweet spot is a truck stop within 5 miles of your route. you get better prices than regular gas stations, high-flow pumps that save time, and you're not burning fuel to chase a lower price.
frequently asked questions
why is diesel more expensive than regular gas?
diesel is taxed higher than gasoline in most states, and refining costs are slightly higher. demand from commercial trucking also keeps prices elevated.
is truck stop diesel the same quality as gas station diesel?
yes, it's the same #2 diesel that meets epa standards. truck stops often have fresher fuel because of higher turnover, and their pumps are higher-flow which means less time filling.
can i use a diesel price app without creating an account?
gasbuddy requires an account to report prices but lets you view them without one. homadic doesn't require any account — diesel prices and truck stop mode work immediately with no data collection.
what's the difference between #1 and #2 diesel?
#2 diesel is standard for most vehicles. #1 diesel (or winterized diesel) is blended for cold weather to prevent gelling. in winter, many stations blend automatically. check your owner's manual for recommendations.
want to find diesel that's actually the best deal after distance?
download homadic on the app store