LAUNCHING SEPT 30

Don't Get Stranded This Winter

Winter Flow 24/7 stops diesel fuel from gelling, de-ices your fuel filters, and boosts cetane for faster cold starts. One bottle treats up to 200 gallons.

Join The Waitlist See How It Works
Dual-chamber bottle with a built-in measuring cup. No extra tools needed.
Protects to 15°F standard dose One bottle treats 200 gallons Made in the USA
DOC'S QUALITY PROMISEUS-DESIGNED. US & GLOBALLY MADE.
FREE U.S. SHIPPINGORDERS OVER $99*
30 DAY WARRANTYMONEY BACK GUARANTEE
U.S.-BASED SUPPORTREAL HUMANS. REAL FAST.
SHIPS FROM OHIO U.S.FAST DOMESTIC FULFILLMENT
LAB-TESTED FORMULABUILT FOR REAL WINTERS
DOC'S QUALITY PROMISEUS-DESIGNED. US & GLOBALLY MADE.
FREE U.S. SHIPPINGORDERS OVER $99*
30 DAY WARRANTYMONEY BACK GUARANTEE
U.S.-BASED SUPPORTREAL HUMANS. REAL FAST.
SHIPS FROM OHIO U.S.FAST DOMESTIC FULFILLMENT
LAB-TESTED FORMULABUILT FOR REAL WINTERS

Why Winter Flow 24/7

01

Stops Fuel From Gelling

Prevents paraffin wax from forming in cold diesel, so fuel keeps flowing when the temperature drops instead of turning to slush in the tank.

02

De-Ices Fuel Filters

Clears ice before it can cut off fuel flow, so you're not stuck troubleshooting a dead filter on a freezing morning.

03

Boosts Cetane For Faster Starts

Higher cetane means quicker ignition and a smoother start, even when the temperature drops overnight.

04

Protects Down To 0°F

Standard dose protects to 15°F. Double the dose for sustained cold below 0°F, no separate product needed.

Doc's Diesel Winter Flow 24/7 Diesel Treatment + Cetane Boost

Be First In Line

Winter Flow 24/7 goes live September 30. Join the waitlist and we'll email you the second it's available, plus early access before everyone else.

Winter Flow 24/7 — FAQs

Standard dose (2oz per 25 gallons) protects down to 15°F. For sustained cold below 0°F, double the dose to 4oz per 25 gallons for extreme protection.

Start before the first freeze. Diesel begins waxing at 32°F, so treat your tank ahead of the cold snap, not after it hits.

Yes. It's safe for all diesel engines, including pickups, semis, farm equipment, and off-road machinery.

Winter Flow 24/7 launches September 30. Join the waitlist above and we'll email you the moment it's live, before it's announced anywhere else.

$23.99 for a single 16oz bottle, or $45.99 for a 2-pack, available at launch on September 30.