15% OFF ORDERS $35+ | 20% OFF $100+ | ONLINE ONLY
USE CODE
CRUISE
*
Exclusions apply.
Advance Auto Parts Logo
Choose a Store
  • Shop All
  • Replacement Parts
  • Performance Parts
  • Accessories
  • Oil & Fluids
  • Special Offers
  • Advance Rewards
  • Advice & How-Tos
  • Project Guides
  • FAQ / Help Desk
Loading...
Share
Product thumb
Product thumb
Product thumb
Product thumb
Product thumb
Product main large

Gumout Fuel Injector and Carburetor Fuel System Cleaner: Restores Lost Horsepower, Treats 21 Gallons, 6 oz.

(61 reviews)
Part # 800001373
30 day warranty
Loading...
Loading...
How Would You Like To Get This Item?

Store Pickup

Loading...Loading...Loading...

Same Day Home Delivery

Loading...Loading...Loading...

Home Delivery

Loading...Loading...Loading...
Loading...
Loading...
Loading...Loading...Loading...Loading...Loading...

Product Information

Product Details
Part No. 800001373
Warranty Details (30 Day Warranty)
Gumout Fuel Injector and Carburetor Cleaner keeps deposits from forming to maintain engine performance and fuel economy. Carbon build-up from combustion can clog fuel injectors and carburetors, limiting the amount of fuel that reaches the engine. This Gumout Fuel Injector and Carburetor Cleaner prevents carbon build-up on indirect fuel injectors, carburetors, intake valves and ports to maximize performance and reduce emissions. It's oxygen sensor safe and safe for use in turbocharged and supercharged vehicles. It will not void OEM/manufactures. Easy to use formula. Just add the entire bottle to a nearly full tank, then fill the tank up to 21 gallons.

Product Features:
  • Helps save gas
  • Prevents deposits from forming
  • Best for delivering maximized performance and reduced emissions
  • Oxygen sensor safe
  • Safe for use in turbocharged and supercharged vehicles
  • 6 oz. long neck bottle for ease in adding to the fuel tank
Specifications
Application Method:
Pour

Carburetor Or Fuel Injection:
Carburetor or Fuel Injection

Oxygen Sensor Safe:
Yes
Loading...
Loading...Loading...Loading...Loading...Loading...
4.7 out of 5
61 Customer Reviews
95% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
50
4 Stars
8
3 Stars
1
2 Stars
0
1 Star
2
Great for maintaining
Pros
6
Easy To Use
2
Compact
2
Reliable
1
It smoothed out the engin
Cons
1
None
Best Uses
6
Home Garage
4
Upkeep
1
Automotive Repair Shop
Car/Motorcycle Describe yourself
5
Casual Driver
4
Auto Enthusiast
2
Mechanic
1
Competitive Driver
1
Truck Enthusiast
Most Liked Positive Review
Excellent product
This product does what it is designed to do in small two cycle gasoline engines; outboard marine engines and in automotive engines. Sluggish performance is notably improved and miles/gal are improved with its use. Small engines with gunked up carburators and sluggish performance will improve with the addition to this product in the gas tank; injector systems are cleansed and noticable engine performance is noted with its regular use.
Most Liked Negative Review
Does nothing
I have a 1970 Corvette big block with the stock Quadra-jet carb that I have owned for 18 years. Always idled perfect. The car was not driven for 6 months and I wanted to drive it from North Carolina to Florida. It started right up and idled perfectly. I drove it to the station and filled it with premium fuel and put one bottle in it. Drove the car back to my house and it was running fine. Next morning it started and ran great until I hit a traffic jam on the interstate in South Carolina. the car would not idle and the carb was flooding terribly! I will never use this product again.
Reviewed by 61 Customers
Excellent product
Staff Reviewer -
This product does what it is designed to do in small two cycle gasoline engines; outboard marine engines and in automotive engines. Sluggish performance is notably improved and miles/gal are improved with its use. Small engines with gunked up carburators and sluggish performance will improve with the addition to this product in the gas tank; injector systems are cleansed and noticable engine performance is noted with its regular use.
Bottom Line Yes, I would recommend to a friend
Saved me $$$$
Staff Reviewer -
Bought a '99 Deville Concours with the Northstar V-8 on a Thursday. On Saturday, it had a very rough idle and the "Service Engine" light came on. The computer readout was "cylinder #2 misfiring". The mechanic recommended new plugs and wires for $160. I ran the tank down and added the Gumout and a full tank of 93 octane. After 30+ miles the "Engine" light stopped and the Northstar is purring! If you've got a rough running engine, spend $3.50 on the Gumout first. The $160 I was budgeting for the ignition work are now dollars saved.
Bottom Line Yes, I would recommend to a friend
good stuff
Staff Reviewer -
Works as good as techron to me always trust pennzoil
Bottom Line Yes, I would recommend to a friend
good for older models
Staff Reviewer -
Good for longer life...
Bottom Line Yes, I would recommend to a friend
It actually works!
Staff Reviewer -
I was surprised how quickly it seemed to help.
Bottom Line Yes, I would recommend to a friend
Loading...
Loading...Loading...Loading...Loading...Loading...
No results
Loading...
Loading...Loading...Loading...Loading...Loading...
Feedback
Be The First To Know About Deals And Promotions.
Plus, create an account to receive $5 off of $20 or more.
TOP REPLACEMENT PARTS
Brake Pads & Shoes
Brake Rotors
Alternators
Water Pumps
Starters
Brake Calipers

Order Lookup

Help Desk

Store Locator

In Store Services

Mobile App

CUSTOMER SUPPORT
Accessibility Statement
Contact Us
Forgot Password
Help Desk
In Store Pickup
In Store Services
Order Tracking
Recall Information
Return Policy
Same Day Delivery
© 2026 Advance Auto Parts
Privacy Policy
Terms of Use
Site Map
ADVANCING A WORLD IN MOTION®