I'm not sure what "Additive" you poured into the Tank but I doubt it had anything to do with your #8 Coil Pack going out....Additives that clean the Fuel Injectors should be a must with each Oil change!!!!!
Good Luck with all those Fountains over there!

Billy Clyde in Houston

 

 

I've got a 2001 XKR daily driver with 127000km/79000miles. I change the oil & filter every twelve months. I've never put in a fuel additive. I checked my owners manual and can't find any reference regarding a fuel additive at each oil change. Is this something you only need to do in Texas?

I had a 2003 Corvette that was originally a California car. The previous owner told me that he had to add Techron every month for the car to run properly. Techron is available at Chevron outlets which we do not have here in Australia. I owned the car for four years and never had a problem and never used an additive. So, my question is, could there be something lacking in the fuel in the USA? My sister and her husband live in Florida and he told me he only uses "Top Tier Gas". WTF is that?

 

 

 

I have no actual data to back this up, but isn't throwing fuel cleaner into a fuel system with unknown maintenance history somewhat risky? Aren't you going to risk messing with stuff already collected in the filter (and that should remain there!) and somehow let it go downstream? Best to replace the fuel filter first, THEN do a round of cleaners. Just my thoughts.

 

The fuel additive I use, Techron, won't dislodge debris build-up, it works by liquifying fuel deposits and other deposits such as dirt and rust flakes. That's why it's pretty much useless if the injectors and fuel filter are heavily blocked. It works best in removal of light to moderate deposits, and as a preventive to keep impurities from settling out of the gas.

Even if it did dislodge gunk in the filter, filter is still there to stop all particles large enough to block an injector from passing thru. That said, there's certainly no harm in starting with a clean fuel filter. And in a perfect world, that would be the best course of action. But I've never had the use of Techron cause the issues you describe. Admittedly, the use of additives is a lazy, or cheap persons way of trying to avoid complete disassembly and bench cleaning of fuel system components.

Z

PS Although my 50+ years in the service industry is lengthy, it's still just a collection of anecdotal experiences, and without real scientific research, my experiences have no more weight that anyone else's.

 

I like Chevron Techron as well. A 20-ounce bottle of it goes down the hatch of all of our vehicles at every oil & filter change I perform. I have never had any fuel injector issues on any of our vehicles. I have no idea whether or not Techron is part of the reason for that, but I will continue to use it. Techron is the only fuel additive I am willing to spend my money on....

 

StuG,

I don't know what you should do in Brisbane, old Buddy! Never been there.....and guess what? It's your XKR and you can do what you want.....! Those little Nozzles need all the help they can get and I'd rather pour Cleaner in the Tank than have to pull them out and send them to the Cleaner Man.....It's easier for me and I'm what counts!!
So, yeah!....It's a Texas thing...I reckon! The other reason is that I have a Snow Performance Methanol/Water Injector that helps cool the load and increase the Octane and I figure that the Cleaner will help take care of any Corrosion that the Methanol might create....Also StuG;.".Sweet Sugar" is BLACK!!!! and Man, She sure is Pretty! Don't ya think?

Billy Clyde, still in Houston

 

 

For those of us that also drove Corvette's (especially C5's) Techron was/is a fast cure for the infamous sulfur corrosion fuel tank sender issue. Cleaned the units up and the gauge worked again. I've also put in in all three of my Rovers and my 98 XK8. Never had any problems.