-17% sale
K100 Not Qualified for Free Shipping K100 32 oz Diesel Fuel Treatment & Stabilizer #K10032WD
00
DAYS 00
HRS 00
MIN 00
SEC
K100 K100 32 oz Diesel Fuel Treatment & Stabilizer #K10032WD $24.52 $29.27
K100 K10032WD Fuel Additives K100 is a premium fuel treatment for all diesel engines for easier starts, better mileage, and reduced emissions. This bio-based formulation stabilizes fuel quality by chemically bonding with water to eliminate it and other fuel problems such as phase separation. Eliminates water and all water-related problems Reduces emissions, black smoke, and oil fumes Stabilizes fuel and keeps it fresh Cleans engines and fuel system for better mileage, easier starting, smoother idle, and more powerand better acceleration Lubricates fuel systems, and burns cleanly and completely leaving no ash deposits Reduces maintenance costs and downtime Replaces lost lubricity in LSD, ULSD, Off-Road, and K-1 winter blend fuels Increases cetane ratings 1-1/2 to 2 points Replaces K100 501 Normalized SKU: K10032WDUPC Code: 757288005011
-17% sale
K100 Not Qualified for Free Shipping K100 32 oz Gas Fuel Treatment & Stabilizer #K10032G
00
DAYS 00
HRS 00
MIN 00
SEC
K100 K100 32 oz Gas Fuel Treatment & Stabilizer #K10032G $28.81 $34.39
K100 K10032G Fuel Additives Eliminates water and all water-related problems and prevents phase separation in all ethanol-blended fuels. 32 oz Gas Fuel Treatment & Stabilizer Replaces K100-MG32, K100-405 Normalized SKU: K10032GUPC Code: 757288004052
-17% sale
K100 Not Qualified for Free Shipping K100 8 oz Gas Fuel Treatment & Stabilizer #K1008G
00
DAYS 00
HRS 00
MIN 00
SEC
K100 K100 8 oz Gas Fuel Treatment & Stabilizer #K1008G $10.09 $12.04
K100 K1008G Fuel Additives K100-G+ eliminates water in the fuel to prevent winter freeze-ups and phase separation in E-10 and improves fuel performance by altering the burn chemistry for more complete combustion, boosting the octane, and reducing oil fumes and toxic emissions. K100-G+ cleans engines and fuel systems, dissolving gums and varnishes for maximum engine performance and fuel system life. K100’s unique organic chemistry will even “fix” equipment that has been sitting a while and won’t start – or run roughly! Gasoline Fuel Treatment & Stabilizer (K100 G+) - 8 oz. Replaces K100MG8-1, K100-100 Normalized SKU: K1008GUPC Code: 757288001006
-17% sale
K100 Qualifies for Free Shipping K100 Diesel Fuel Treatment & Stabilizer 8 oz #K1008WD
00
DAYS 00
HRS 00
MIN 00
SEC
K100 K100 Diesel Fuel Treatment & Stabilizer 8 oz #K1008WD $8.49 $10.14
K100 K1008WD Fuel Additives Diesel Fuel Treatment & Stabilizer, 8 ounce bottle. Anti-gel formula for cold weather Increases lubricity Improves power and efficiency Complete system cleaner Eliminates water and water-related problems Eliminates conditions necessary for microbe growth Improves overall engine efficiency Dissolves gums and varnishes MD revitalizes fuel and stabilizes fuel for long-term storage Replaces K100 404, K100 MD8-1 Normalized SKU: K1008WDUPC Code: 709387791029

Frequently Asked Questions

First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!

Yes, we offer FREE Shipping on most orders over $149 to US-48*.

Each product displays a shipping status message, just above the item price. Below is the meaning for each of these codes.

  • Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
  • Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
  • Oversized - Not Qualified for Free Shipping: This item is too large/heavy to qualify for free shipping
  • Hazardous Item - Not Qualified for Free Shipping: This item is hazardous and does not qualify for free shipping
  • Truck Freight - Not Qualified for Free Shipping: This item has to be shipped via truck freight. Please contact us for a quote
  • In-Store Pickup Only: This item can only be picked up in our Grain Valley, MO retail store

Below the price of the item, on the product page, there is a message indicating the availability of the product.

The quantity on hand is updated as inventory events happen and matches what we have available. If you have urgent needs and we are close to what you need, contact us, and we can confirm stock.

We offer a hassle-free return policy. If you're not completely satisfied with your purchase, you can return it within 30 days for a full refund or exchange.

If you need to return an item, please follow the guidelines here so we can process a prompt refund and assist you in finding the correct item.

Free Shipping

On most orders $149+ to the continental 48 US states.

Secure Shopping

Fast, secure checkout with a variety of payment methods.

Shop with confidence

25+ years serving the marine industry.

Support center

Need help? Contact us via live chat, phone, or email.

© 2026 First Choice Marine.