My shopping cart
Your cart is currently empty.Continue Shopping
Get notified of the latest specials
Now when you bundle a gallon of your favorite multi-function fuel additive with a dosing cap, we will chip in something extra and save you some bucks at the same time.
Order a Gallon bottle of Mix-I-Go, Dee-Zol, Ethanol Defense, Dee-Zol Plus, Marine Dee-Zol or Marine MXO and pair it with one of our Dosing Caps. We've discounted them off the regular prices for those items together, plus we will throw in a free 16-oz. empty bottle to use with your dosing cap.
To order this special bundle, just select it on the product page of your favorite fuel treatment. Each bundle is already priced with the discount.
Stock up and save! Save 12%-17% on your bottles when you buy a case. Plus, you'll qualify for free shipping with a purchase over $100.
Simply enter the coupon code* FIVEOFF75 when you check out, and you'll save $5 off your order of $75 or more. Spend $100 or more and you'll get free shipping, too.
Enjoy free shipping when your order totals $100 or more. No coupon code required.
* Only one coupon code may be applied to an order.