Fuel system cleaner
Thread Starter
Advanced
Joined: Aug 2018
Posts: 74
Likes: 14
From: Houston tx
Fuel system cleaner
My '03 Vette runs well with 90,000 miles (I'm third owner). I only use high test gas. I see on the Forum that some people periodically add some Techron (or other brand) fuel system cleaner. Would this be a wise preventative maintenance measure or should I go with "if it ain't broke don't fix it" and leave it alone? Thank you.
Administrator
Joined: Mar 2001
Posts: 368,324
Likes: 24,777
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
IMO, I would add the Techron at least twice a year to help clean the fuel system and reduce sulfur deposits on the fuel sending unit. Good preventative measure.
Team Owner
Joined: Aug 2003
Posts: 24,499
Likes: 312
From: Scottsdale AZ
I probably put less than 5000 miles a year on my anniversary, but I'd agree with Jack . . 2x/year with the Techron . . . and add it to my Lexis every 6 months as well.
Le Mans Master
Joined: Apr 2012
Posts: 7,814
Likes: 2,266
From: Brighton MI
Melting Slicks
Joined: Mar 2012
Posts: 2,800
Likes: 456
From: USA
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Advanced
Joined: Aug 2018
Posts: 74
Likes: 14
From: Houston tx
Thank you, Vetteman Jack, Are there other similar "good preventative measures" you take that a Vette owner should consider? There are a million products/additives/etc. out there and I'm sure some could be very helpful.
NCM Lifetime Member
Joined: Aug 2015
Posts: 5,343
Likes: 4,288
From: Cunningham, TN
2021 Corvette of the Year - Modified
2020 C5 of the Year Winner- Modified
C5 of Year Finalist (appearance mods) 2019
St. Jude Donor '18 thru '26
Techron is BOGO at Advance Auto Parts right now. Not sure how much longer it will be. I ordered 6-20 oz. bottles this week. $45.92 with tax. Orders over $25 ship for free.
I use it in all of my vehicles and gas powered lawn equipment. That will last me a couple of years.
Advance & O'Reilly's have the BOGO sales at least twice a year.
I use it in all of my vehicles and gas powered lawn equipment. That will last me a couple of years.
Advance & O'Reilly's have the BOGO sales at least twice a year.
Drifting
Joined: Mar 2013
Posts: 1,496
Likes: 353
From: Little Rock Arkansas
I didn't think of using Techron fuel additive on my C5 (with under 55,000 miles) until I was on a long road trip and received both a 'Low Fuel' DIC message and the fuel gauge going to 'L'. This is a relatively common issue with C5s. On my next fill up I picked up a bottle of Techron and filled the tank (I've never used anything but premium fuel). Haven't had any issues since.
I would say the Techron additive periodically would not be a wasted purchase and I plan to run it roughly twice a year per what Vetteman_Jack posted.
I would say the Techron additive periodically would not be a wasted purchase and I plan to run it roughly twice a year per what Vetteman_Jack posted.
Thread Starter
Advanced
Joined: Aug 2018
Posts: 74
Likes: 14
From: Houston tx
Sometimes I pick up knowledge on the Forum (nuts & bolts, specs, etc) and sometimes its wisdom gained by experience. It seems a wise thing for me would be to follow in the footsteps on you and Vetteman Jack, so starting my next fill up and twice a year thereafter and gonna Techron it. Thanks for your input. Gary
Drifting
Joined: Jan 2014
Posts: 1,285
Likes: 164
From: MA
try seafoam in gas tank + in PCV tube while car is running - THAT will clean it up...will make serious smoke so do it outside well ventilated not in close proximity to your house & def not inside a garage w/ doors open lol
Youtube it, will also see that a can of seafoam SHOULD put catch can companies outta business - at least for traditional FI cars
Youtube it, will also see that a can of seafoam SHOULD put catch can companies outta business - at least for traditional FI cars
Drifting
Joined: Jan 2015
Posts: 1,256
Likes: 157
From: Pennsylvania
Black bottle Techron is the best product you can buy off the shelf as far as fuel treatments go. Like stated above it is the only documented cleaner to fix the fuel gauge issues these cars suffer from. My c5 just seems to run better with a bottle in the tank but I don’t spend the money to put it in all the time. With Techron you can not really over treat and or overuse it is not a abrasive or corrosive cleaner so it is always safe to use.
Le Mans Master
Joined: Jul 2011
Posts: 7,421
Likes: 969
From: Morristown New Jersey
Oldtimer
try seafoam in gas tank + in PCV tube while car is running - THAT will clean it up...will make serious smoke so do it outside well ventilated not in close proximity to your house & def not inside a garage w/ doors open lol
Youtube it, will also see that a can of seafoam SHOULD put catch can companies outta business - at least for traditional FI cars
Youtube it, will also see that a can of seafoam SHOULD put catch can companies outta business - at least for traditional FI cars
Techron: I don’t remember the source, but I had info that stated that the Techron available from Advance and other parts vendors, especially when on sale was ‘stronger’ or ‘higher quality’ than what you might pick up in Kmart or Costco. I don’t know how true this is, but I tend to buy it during a BOGO sale as described above.
Last edited by chasboy; Sep 19, 2018 at 04:26 PM.
Premium Supporting Vendor
Joined: Oct 2004
Posts: 23,599
Likes: 1,224
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
try seafoam in gas tank + in PCV tube while car is running - THAT will clean it up...will make serious smoke so do it outside well ventilated not in close proximity to your house & def not inside a garage w/ doors open lol
Youtube it, will also see that a can of seafoam SHOULD put catch can companies outta business - at least for traditional FI cars
Youtube it, will also see that a can of seafoam SHOULD put catch can companies outta business - at least for traditional FI cars
Sea Foam does work great, but it cleans the effects of carbon in the engine, a catch can prevents oil from going into the intake. Two completely different scenarios, a catch can is always a good preventative measure.
Le Mans Master
Joined: Jul 2011
Posts: 7,421
Likes: 969
From: Morristown New Jersey
Oldtimer
Maybe I have to make a visit, also for a ‘check up’ on my current tune?
Charlie Gaffen
